investigatory project work physics for transformer 100%non working and ensurance of gettin ful marks in practicle in investigatory projesct ,hopeful u enjoy....
Also called: break bone fever
Dengue viruses are the arboviruses capable of infecting humans and causing disease.
It is a arthropod borne viral disease. Of all the arthropod borne diseases dengue fewer is most commonCBSE class 12th physics Investigatory ProjectAlso called: break bone fever
Dengue viruses are the arboviruses capable of infecting humans and causing disease.
It is a arthropod borne viral disease. Of all the arthropod borne diseases dengue fewer is most common
The transformer is a device used for converting a low alternating voltage to a high alternating voltage or vice-versa. A Transformer based on the Principle of mutual induction according to this principle, the amount of magnetic flux linked with a coil changing, an e.m.f is induced in the neighbouring coil.
Also called: break bone fever
Dengue viruses are the arboviruses capable of infecting humans and causing disease.
It is a arthropod borne viral disease. Of all the arthropod borne diseases dengue fewer is most commonCBSE class 12th physics Investigatory ProjectAlso called: break bone fever
Dengue viruses are the arboviruses capable of infecting humans and causing disease.
It is a arthropod borne viral disease. Of all the arthropod borne diseases dengue fewer is most common
The transformer is a device used for converting a low alternating voltage to a high alternating voltage or vice-versa. A Transformer based on the Principle of mutual induction according to this principle, the amount of magnetic flux linked with a coil changing, an e.m.f is induced in the neighbouring coil.
transformers is a project based on physics which explores its working, uses, loses and many more.... please do visit the project for good sense of understanding
transformers is a project based on physics which explores its working, uses, loses and many more.... please do visit the project for good sense of understanding
Step-down transformer Physics project Class 12 CBSE FinalMuhammad Jassim
FULL MARK WITH THIS. EASY NO WORY. QUESTIONS FOR VIVA WILL ALSO BE EASY SINCE THE PROJECT IS EASY.
Step-down transformer Physics project Class 12 CBSE Final
Class 12 Investigatory project, Presentation, Class 12 Physics Project presentation, Class 12 physics Project,CBSE Class 12 physics project, Transformers
TOPIC-To investigate the relation between the ratio of :-1. Input and outpu...CHMURLIDHAR
TOPIC-To investigate the relation between the ratio of :-1. Input and output voltage.2. Number of turnings in the secondary coil and primary coil of a self made transformer.
https://www.slideshare.net/EligetiVishnu/physics-investigatory-electromagnetic-inductionhttps://www.slideshare.net/EligetiVishnu/physics-investigatory-electromagnetic-inductionhttps://www.slideshare.net/EligetiVishnu/physics-investigatory-electromagnetic-inductionhttps://www.slideshare.net/EligetiVishnu/physics-investigatory-electromagnetic-inductionvvhttps://www.slideshare.net/EligetiVishnu/physics-investigatory-electromagnetic-inductionhttps://www.slideshare.net/EligetiVishnu/physics-investigatory-electromagnetic-inductionvhttps://www.slideshare.net/EligetiVishnu/physics-investigatory-electromagnetic-induction Area 51 is the common name of a highly classified United States Air Force (USAF) facility within the Nevada Test and Training Range. A remote detachment administered by Edwards Air Force Base, the facility is officially called Homey Airport (ICAO: KXTA, FAA LID: XTA)[1] or Groom Lake (after the salt flat next to its airfield). Details of its operations are not made public, but the USAF says that it is an open training range,[2] and it is commonly thought to support the development and testing of experimental aircraft and weapons systems.[3][2] The USAF and CIA acquired the site in 1955, primarily for flight testing the Lockheed U-2 aircraft.[4]
The intense secrecy surrounding the base has made it the frequent subject of conspiracy theories and a central component of unidentified flying object (UFO) folklore.[5][6] It has never been declared a secret base, but all research and occurrences in Area 51 are Top Secret/Sensitive Compartmented Information (TS/SCI).[7] The CIA publicly acknowledged the base's existence on 25 June 2013, following a Freedom of Information Act (FOIA) request filed in 2005 and declassified documents detailing its history and purpose.[8]
Area 51 is located in the southern portion of Nevada, 83 miles (134 km) north-northwest of Las Vegas. The surrounding area is a popular tourist destination, including the small town of Rachel on the "Extraterrestrial Highway".Area 51 is the common name of a highly classified United States Air Force (USAF) facility within the Nevada Test and Training Range. A remote detachment administered by Edwards Air Force Base, the facility is officially called Homey Airport (ICAO: KXTA, FAA LID: XTA)[1] or Groom Lake (after the salt flat next to its airfield). Details of its operations are not made public, but the USAF says that it is an open training range,[2] and it is commonly thought to support the development and testing of experimental aircraft and weapons systems.[3][2] The USAF and CIA acquired the site in 1955, primarily for flight testing the Lockheed U-2 aircraft.[4]
The intense secrecy surrounding the base has made it the frequent subject of conspiracy theories and a central component of unidentified flying object (UFO) folklore.[5][6] It has never been declared a secret base, but all research and occurrences in Area 51 are Top Secret/Sensitive Compartmented Information (TS/SCI).[7
Operation “Blue Star” is the only event in the history of Independent India where the state went into war with its own people. Even after about 40 years it is not clear if it was culmination of states anger over people of the region, a political game of power or start of dictatorial chapter in the democratic setup.
The people of Punjab felt alienated from main stream due to denial of their just demands during a long democratic struggle since independence. As it happen all over the word, it led to militant struggle with great loss of lives of military, police and civilian personnel. Killing of Indira Gandhi and massacre of innocent Sikhs in Delhi and other India cities was also associated with this movement.
Francesca Gottschalk - How can education support child empowerment.pptxEduSkills OECD
Francesca Gottschalk from the OECD’s Centre for Educational Research and Innovation presents at the Ask an Expert Webinar: How can education support child empowerment?
Welcome to TechSoup New Member Orientation and Q&A (May 2024).pdfTechSoup
In this webinar you will learn how your organization can access TechSoup's wide variety of product discount and donation programs. From hardware to software, we'll give you a tour of the tools available to help your nonprofit with productivity, collaboration, financial management, donor tracking, security, and more.
Instructions for Submissions thorugh G- Classroom.pptxJheel Barad
This presentation provides a briefing on how to upload submissions and documents in Google Classroom. It was prepared as part of an orientation for new Sainik School in-service teacher trainees. As a training officer, my goal is to ensure that you are comfortable and proficient with this essential tool for managing assignments and fostering student engagement.
Biological screening of herbal drugs: Introduction and Need for
Phyto-Pharmacological Screening, New Strategies for evaluating
Natural Products, In vitro evaluation techniques for Antioxidants, Antimicrobial and Anticancer drugs. In vivo evaluation techniques
for Anti-inflammatory, Antiulcer, Anticancer, Wound healing, Antidiabetic, Hepatoprotective, Cardio protective, Diuretics and
Antifertility, Toxicity studies as per OECD guidelines
Unit 8 - Information and Communication Technology (Paper I).pdfThiyagu K
This slides describes the basic concepts of ICT, basics of Email, Emerging Technology and Digital Initiatives in Education. This presentations aligns with the UGC Paper I syllabus.
The Roman Empire A Historical Colossus.pdfkaushalkr1407
The Roman Empire, a vast and enduring power, stands as one of history's most remarkable civilizations, leaving an indelible imprint on the world. It emerged from the Roman Republic, transitioning into an imperial powerhouse under the leadership of Augustus Caesar in 27 BCE. This transformation marked the beginning of an era defined by unprecedented territorial expansion, architectural marvels, and profound cultural influence.
The empire's roots lie in the city of Rome, founded, according to legend, by Romulus in 753 BCE. Over centuries, Rome evolved from a small settlement to a formidable republic, characterized by a complex political system with elected officials and checks on power. However, internal strife, class conflicts, and military ambitions paved the way for the end of the Republic. Julius Caesar’s dictatorship and subsequent assassination in 44 BCE created a power vacuum, leading to a civil war. Octavian, later Augustus, emerged victorious, heralding the Roman Empire’s birth.
Under Augustus, the empire experienced the Pax Romana, a 200-year period of relative peace and stability. Augustus reformed the military, established efficient administrative systems, and initiated grand construction projects. The empire's borders expanded, encompassing territories from Britain to Egypt and from Spain to the Euphrates. Roman legions, renowned for their discipline and engineering prowess, secured and maintained these vast territories, building roads, fortifications, and cities that facilitated control and integration.
The Roman Empire’s society was hierarchical, with a rigid class system. At the top were the patricians, wealthy elites who held significant political power. Below them were the plebeians, free citizens with limited political influence, and the vast numbers of slaves who formed the backbone of the economy. The family unit was central, governed by the paterfamilias, the male head who held absolute authority.
Culturally, the Romans were eclectic, absorbing and adapting elements from the civilizations they encountered, particularly the Greeks. Roman art, literature, and philosophy reflected this synthesis, creating a rich cultural tapestry. Latin, the Roman language, became the lingua franca of the Western world, influencing numerous modern languages.
Roman architecture and engineering achievements were monumental. They perfected the arch, vault, and dome, constructing enduring structures like the Colosseum, Pantheon, and aqueducts. These engineering marvels not only showcased Roman ingenuity but also served practical purposes, from public entertainment to water supply.
Macroeconomics- Movie Location
This will be used as part of your Personal Professional Portfolio once graded.
Objective:
Prepare a presentation or a paper using research, basic comparative analysis, data organization and application of economic information. You will make an informed assessment of an economic climate outside of the United States to accomplish an entertainment industry objective.
Acetabularia Information For Class 9 .docxvaibhavrinwa19
Acetabularia acetabulum is a single-celled green alga that in its vegetative state is morphologically differentiated into a basal rhizoid and an axially elongated stalk, which bears whorls of branching hairs. The single diploid nucleus resides in the rhizoid.
A Strategic Approach: GenAI in EducationPeter Windle
Artificial Intelligence (AI) technologies such as Generative AI, Image Generators and Large Language Models have had a dramatic impact on teaching, learning and assessment over the past 18 months. The most immediate threat AI posed was to Academic Integrity with Higher Education Institutes (HEIs) focusing their efforts on combating the use of GenAI in assessment. Guidelines were developed for staff and students, policies put in place too. Innovative educators have forged paths in the use of Generative AI for teaching, learning and assessments leading to pockets of transformation springing up across HEIs, often with little or no top-down guidance, support or direction.
This Gasta posits a strategic approach to integrating AI into HEIs to prepare staff, students and the curriculum for an evolving world and workplace. We will highlight the advantages of working with these technologies beyond the realm of teaching, learning and assessment by considering prompt engineering skills, industry impact, curriculum changes, and the need for staff upskilling. In contrast, not engaging strategically with Generative AI poses risks, including falling behind peers, missed opportunities and failing to ensure our graduates remain employable. The rapid evolution of AI technologies necessitates a proactive and strategic approach if we are to remain relevant.
physics non working investigatory project tranformer
1.
2. CREATED BY AKASH GAURAV KV1
HINDAN 16-17
100% NONWORKING INVESTIGATORY PROJECT WORK FOR PHYSICS AT THE LAST MOMENT WHEN NO
ONESHARE THEIR PROJECT…………AKASH GAURAV 16-17
MADE BY AKASH GAURAV
KV1 HINDAN GHZ
16-17
3. CREATED BY AKASH GAURAV KV1
HINDAN 16-17
100% NONWORKING INVESTIGATORY PROJECT WORK FOR PHYSICS AT THE LAST MOMENT WHEN NO
ONESHARE THEIR PROJECT…………AKASH GAURAV 16-17
MADE BY AKASH
GAURAV KV1 HINDAN
GHZ
16-17
ENJOY 12 ALL THE BEST …….
4. CREATED BY AKASH GAURAV KV1
HINDAN 16-17
100% NONWORKING INVESTIGATORY PROJECT WORK FOR PHYSICS AT THE LAST MOMENT WHEN NO
ONESHARE THEIR PROJECT…………AKASH GAURAV 16-17
CERTIFICATE
This is to certify that AKASH GAURAV, a student of class XII-A
has successfully completed the research on the below mentioned
project under the guidance of MRS. INDU GOSWAMI ( Subject
Teacher ) during the year 2016-17 in partial fulfillment of physics
practical examination conducted by CBSE, HINDAN.
Signature of external Signature of physics
Examiner Teacher
5. CREATED BY AKASH GAURAV KV1
HINDAN 16-17
100% NONWORKING INVESTIGATORY PROJECT WORK FOR PHYSICS AT THE LAST MOMENT WHEN NO
ONESHARE THEIR PROJECT…………AKASH GAURAV 16-17
ACKNOWLEDGEMENT
In the accomplishment of this project successfully,
many people have best owned upon me their
blessings and the heart pledged support, this time I
am utilizing to thank all the people who have been
concerned with project.
Primarily I would thank god for being able to
complete this project with success. Then I would like
to thank my principal Mr.Lahari singh and physics
teacher Mrs.Indu Goswami, whose valuable
guidance has been the ones that helped me patch
this project and make it full proof success his
suggestions and his instructions has served as the
major contributor towards the completion of the
project.
6. CREATED BY AKASH GAURAV KV1
HINDAN 16-17
100% NONWORKING INVESTIGATORY PROJECT WORK FOR PHYSICS AT THE LAST MOMENT WHEN NO
ONESHARE THEIR PROJECT…………AKASH GAURAV 16-17
Then I would like to thank my parents and friends who
have helped me with their valuable suggestions and
guidance has been helpful in various phases of the
completion of the project.
INDEX
1. CERTIFICATE OF EXCELLENCE
2. ACKNOWLEDGEMENT
3. AIM OF PROJECT
4. INTRODUCTION
5. THEORY
6. OBSERVATION
7. CONCLUSION
7. CREATED BY AKASH GAURAV KV1
HINDAN 16-17
100% NONWORKING INVESTIGATORY PROJECT WORK FOR PHYSICS AT THE LAST MOMENT WHEN NO
ONESHARE THEIR PROJECT…………AKASH GAURAV 16-17
8. PRECAUTION
9. BIBLIOGRAPHY
AIM
To investigate the relation between the ratio of –
1. Input and output voltage.
2. Number of turnings in the secondary coil and primary
coil of a self-made transformer
8. CREATED BY AKASH GAURAV KV1
HINDAN 16-17
100% NONWORKING INVESTIGATORY PROJECT WORK FOR PHYSICS AT THE LAST MOMENT WHEN NO
ONESHARE THEIR PROJECT…………AKASH GAURAV 16-17
9. CREATED BY AKASH GAURAV KV1
HINDAN 16-17
100% NONWORKING INVESTIGATORY PROJECT WORK FOR PHYSICS AT THE LAST MOMENT WHEN NO
ONESHARE THEIR PROJECT…………AKASH GAURAV 16-17
INTRODUCTION
The transformer is a device used for converting a low
alternating voltage to a high alternating voltage or
viceversa.
A Transformer based on the Principle of mutual induction
according to this principle, the amount of magnetic flux
linked with a coil changing, an e.m.f is induced in the
neighboring coil.
A transformer is an electrical device which is used for
changing the A.C. voltages. A transformer is most widely
used device in both low and high current circuit. As such
transformers are built in an amazing strength of sizes. In
electronic, measurement and control circuits, transformer
size may be so small that it weight only a few tens of grams
where as in high voltage power circuits, it may weight
hundred of tones.
In a transformer, the electrical energy transfer from one
circuit to another circuit takes place without the use of
moving parts. A transformer which increases the voltages
10. CREATED BY AKASH GAURAV KV1
HINDAN 16-17
100% NONWORKING INVESTIGATORY PROJECT WORK FOR PHYSICS AT THE LAST MOMENT WHEN NO
ONESHARE THEIR PROJECT…………AKASH GAURAV 16-17
is called a stepup transformer. A transformer which
decreases the A.C. voltages is called a step-down
transformer. Transformer is, therefore, an essential piece
of apparatus both for high and low current circuits.
OBJECTIVE
To investigate the relation between the
ratio of –
1. Input and output voltage.
2. Number of turnings in the secondary coil and
primary coil of a self-made transformer.
11. CREATED BY AKASH GAURAV KV1
HINDAN 16-17
100% NONWORKING INVESTIGATORY PROJECT WORK FOR PHYSICS AT THE LAST MOMENT WHEN NO
ONESHARE THEIR PROJECT…………AKASH GAURAV 16-17
THEORY
When an altering e.m.f. is supplied to the primary coil p1p2,
an alternating current starts falling in it. The altering current
in the primary produces a changing magnetic flux, which
induces altering voltage in the primary as well as in the
secondary. In a goodtransformer, whole of the magnetic
flux linked with primary is also linked with the secondary,
and then the induced e.m.f. induced in each turn of the
secondary is equal to that induced in each turn of the
primary. Thus if Ep and Es be the instantaneous values of
the e.m.f.’s induced in the primary and the secondary and
Np and Ns are the no. of turns of the primary secondary coils
of the transformer .
12. CREATED BY AKASH GAURAV KV1
HINDAN 16-17
100% NONWORKING INVESTIGATORY PROJECT WORK FOR PHYSICS AT THE LAST MOMENT WHEN NO
ONESHARE THEIR PROJECT…………AKASH GAURAV 16-17
dф / dt = rate of change of flux in each turnoff the
coil at this instant, we have
Ep = -Np dф/dt _______________ (1) and
Es = -Ns dф/dt _______________ (2)
Since the above relations are true at every instant,
so by dividing 2 by 1, we get
Es / Ep = - Ns / Np ______________ (3)
13. CREATED BY AKASH GAURAV KV1
HINDAN 16-17
100% NONWORKING INVESTIGATORY PROJECT WORK FOR PHYSICS AT THE LAST MOMENT WHEN NO
ONESHARE THEIR PROJECT…………AKASH GAURAV 16-17
As Ep is the instantaneous value of back e.m.f
induced in the primary coil p1, so the instantaneous
current in primary coil is due to the difference (E –
Ep) in the instantaneous values of the applied and
back
e.m.f. further if Rp is the resistance o, p1p2 coil, then
the instantaneous current Ip in the primary coil is
given by
Ip = E – Ep / Rp
E – Ep = Ip Rp
Thus back e.m.f = input e.m.f
Hence equation 3 can be written as
Es / Ep = Es / E
= output e.m.f / input e.m.f
= Ns / Np = K
Where K is constant, called turn or transformation
ratio.
14. CREATED BY AKASH GAURAV KV1
HINDAN 16-17
100% NONWORKING INVESTIGATORY PROJECT WORK FOR PHYSICS AT THE LAST MOMENT WHEN NO
ONESHARE THEIR PROJECT…………AKASH GAURAV 16-17
15. CREATED BY AKASH GAURAV KV1
HINDAN 16-17
100% NONWORKING INVESTIGATORY PROJECT WORK FOR PHYSICS AT THE LAST MOMENT WHEN NO
ONESHARE THEIR PROJECT…………AKASH GAURAV 16-17
IN A STEP-DOWN TRANSFORMER
Es < E so K < 1, hence Ns < Np
Ip = value of primary current at the same instant
And
Is = value of secondary current at this instant, then
Input power at the instant = Ep Ip
Output power at the same instant = Es Is
If there are no losses of power in the transformer, then
16. CREATED BY AKASH GAURAV KV1
HINDAN 16-17
100% NONWORKING INVESTIGATORY PROJECT WORK FOR PHYSICS AT THE LAST MOMENT WHEN NO
ONESHARE THEIR PROJECT…………AKASH GAURAV 16-17
Input power = output power
Ep Ip = Es Is
Es / Ep = Ip / Is = K
IN A STEP-UP TRANSFORMER
Es
> E so K > 1, hence Ns > Np
17. CREATED BY AKASH GAURAV KV1
HINDAN 16-17
100% NONWORKING INVESTIGATORY PROJECT WORK FOR PHYSICS AT THE LAST MOMENT WHEN NO
ONESHARE THEIR PROJECT…………AKASH GAURAV 16-17
As, k > 1, so Ip > Is or Is < Ip
i.e. current in secondary is weaker when secondary
voltage is higher.
Hence, whatever we gain in voltage, we lose in
current in the same ratio.
Similarly it can be shown, that in a step down
transformer, whatever we lose in voltage, we gain in
current in the same ratio.
Thus a step up transformer in reality steps down the
current & a step down transformer steps up the
current.
18. CREATED BY AKASH GAURAV KV1
HINDAN 16-17
100% NONWORKING INVESTIGATORY PROJECT WORK FOR PHYSICS AT THE LAST MOMENT WHEN NO
ONESHARE THEIR PROJECT…………AKASH GAURAV 16-17
EFFICIENCY
Efficiency of a transformer is defined as the ratio of output
power to the input power.
i.e.
η
= output power / input power = Es Is / Ep Ip
Thus in an ideal transformer, where there is no power
losses, η = 1. But in actual practice, there are many power
19. CREATED BY AKASH GAURAV KV1
HINDAN 16-17
100% NONWORKING INVESTIGATORY PROJECT WORK FOR PHYSICS AT THE LAST MOMENT WHEN NO
ONESHARE THEIR PROJECT…………AKASH GAURAV 16-17
losses; therefore the efficiency of transformer is less than
one.
ENERGY LOSSES
Following are the major sources of energy loss in a
transformer:
20. CREATED BY AKASH GAURAV KV1
HINDAN 16-17
100% NONWORKING INVESTIGATORY PROJECT WORK FOR PHYSICS AT THE LAST MOMENT WHEN NO
ONESHARE THEIR PROJECT…………AKASH GAURAV 16-17
1. Copper loss is the energy loss in the form of heat in the
copper coils of a transformer. This is due to joule heating
of conducting wires.
2. Iron loss is the energy loss in the form of heat in the iron
core of the transformer. This is due to formation of eddy
currents in iron core. It is minimized by taking laminated
cores.
Leakage of magnetic flux occurs inspite of best
insulations Therefore, rate of change of magnetic flux linked
with each turn of S1S2 is less than the rate of change of
magnetic flux linked with each turn of P1P2.
3. Hysteresis loss is the loss of energy due to repeated
magnetization and demagnetization of the iron core
when A.C. is fed to it.
4. Magneto striation i.e. humming noise of
a transformer.
21. CREATED BY AKASH GAURAV KV1
HINDAN 16-17
100% NONWORKING INVESTIGATORY PROJECT WORK FOR PHYSICS AT THE LAST MOMENT WHEN NO
ONESHARE THEIR PROJECT…………AKASH GAURAV 16-17
APPARATUS REQUIRED
22. CREATED BY AKASH GAURAV KV1
HINDAN 16-17
100% NONWORKING INVESTIGATORY PROJECT WORK FOR PHYSICS AT THE LAST MOMENT WHEN NO
ONESHARE THEIR PROJECT…………AKASH GAURAV 16-17
IRON ROD
COPPER WIRE
VOLTMETRE
AMMETRE
23. CREATED BY AKASH GAURAV KV1
HINDAN 16-17
100% NONWORKING INVESTIGATORY PROJECT WORK FOR PHYSICS AT THE LAST MOMENT WHEN NO
ONESHARE THEIR PROJECT…………AKASH GAURAV 16-17
CIRCUIT DIAGRAM
24. CREATED BY AKASH GAURAV KV1
HINDAN 16-17
100% NONWORKING INVESTIGATORY PROJECT WORK FOR PHYSICS AT THE LAST MOMENT WHEN NO
ONESHARE THEIR PROJECT…………AKASH GAURAV 16-17
25. CREATED BY AKASH GAURAV KV1
HINDAN 16-17
100% NONWORKING INVESTIGATORY PROJECT WORK FOR PHYSICS AT THE LAST MOMENT WHEN NO
ONESHARE THEIR PROJECT…………AKASH GAURAV 16-17
PROCEDURE FOLLOWED
1.Take thick iron rod and cover it with a thick paper
and wind a large number of turns of thin Cu wire on
thick paper (say 60). This constitutes primary coil of
the transformer.
2. Cover the primary coil with a sheet of paper and
wound relatively smaller number of turns (say 20) of
thick copper wire on it. This constitutes the
secondary coil. It is a step down transformer.
3. Connect p1, p2 to A.C main and measure the
input voltage and current using A.C voltmeter and
ammeter respectively.
4. Similarly, measure the output voltage and
current through s1and s2.
5. Now connect s1and s2to A.C main and again
measure voltage and current through primary and
secondary coil of step up transformer.
26. CREATED BY AKASH GAURAV KV1
HINDAN 16-17
100% NONWORKING INVESTIGATORY PROJECT WORK FOR PHYSICS AT THE LAST MOMENT WHEN NO
ONESHARE THEIR PROJECT…………AKASH GAURAV 16-17
6. Repeat all steps for other self made transformers
by changing number of turns in primary and
secondary coil.
USES OF TRANSFORMER
A transformer is used in almost all a.c. operations-
In voltage regulator for T.V., refrigerator,
computer, air conditioner, etc.
A step down transformer is used for welding
purposes.
A step down transformer is used for obtaining
large current.
A step up transformer is used for the production
of X-Rays and NEON advertisement.
Transformers are used in voltage regulators and
stabilized power supplies.
Transformers are used in the transmissions of
a.c. over long distances.
27. CREATED BY AKASH GAURAV KV1
HINDAN 16-17
100% NONWORKING INVESTIGATORY PROJECT WORK FOR PHYSICS AT THE LAST MOMENT WHEN NO
ONESHARE THEIR PROJECT…………AKASH GAURAV 16-17
Small transformers are used in Radio sets,
telephones, loud speakers and electric bells etc
CONCLUSION
1. The output voltage of the transformer across the
secondary coil depends upon the ratio (Ns/Np) with
respect to the input voltage
2. The output voltage of the transformer across the
secondary coil depends upon the ratio (Ns/N p) with
respect to the input voltage
3. There is a loss of power between input and output
coil of a transformer.
28. CREATED BY AKASH GAURAV KV1
HINDAN 16-17
100% NONWORKING INVESTIGATORY PROJECT WORK FOR PHYSICS AT THE LAST MOMENT WHEN NO
ONESHARE THEIR PROJECT…………AKASH GAURAV 16-17
PRECAUTIONS
1. Keep safe yourself from high voltage.
2. While taking the readings of current and voltage
the A.C should remain constant.
29. CREATED BY AKASH GAURAV KV1
HINDAN 16-17
100% NONWORKING INVESTIGATORY PROJECT WORK FOR PHYSICS AT THE LAST MOMENT WHEN NO
ONESHARE THEIR PROJECT…………AKASH GAURAV 16-17
SOURCES OF ERROR
1. Values of current can be changed due to
heating effect.
2. Eddy current can change the readings.
BIBLIOGRAPHY
1) NCERT textbook class 12
2) NCERT physics lab Manuel
3) INTERNET
4) www.google.com
30. CREATED BY AKASH GAURAV KV1
HINDAN 16-17
100% NONWORKING INVESTIGATORY PROJECT WORK FOR PHYSICS AT THE LAST MOMENT WHEN NO
ONESHARE THEIR PROJECT…………AKASH GAURAV 16-17
MADE BY AKASH GAURAV
KV1 HINDAN GHZ
16-17
31. CREATED BY AKASH GAURAV KV1
HINDAN 16-17
100% NONWORKING INVESTIGATORY PROJECT WORK FOR PHYSICS AT THE LAST MOMENT WHEN NO
ONESHARE THEIR PROJECT…………AKASH GAURAV 16-17