This document discusses semiconductor diodes and transistors. It begins by explaining the p-n junction of a semiconductor diode and how diodes can be used as rectifiers to convert alternating current to direct current in half-wave and full-wave configurations. It then discusses how capacitors can be used to smooth the rectified output. The document goes on to explain how transistors function as amplifiers and switches, and how properties like light intensity and temperature can be used to control transistors. Examples given include using transistors to control streetlamps and fire alarms.
Ammeter is a low resistance galvanometer
It is used to measure the current in a circuit in amperes
Galvanometer can be converted into an ammeter by using a low resistance wire in parallel with the galvanometer
the resistance of the wire depends upon the range of the ammeter
As shunt resistance is small the combined resistance of the galvanometer & the shunt is very low hence the ammeter has much lower resistance than galvanometer
An ideal ammeter has zero resistance
It is the most common instrument used to measure voltage
It measure either AC or DC voltage
It is a measure of the voltage between two points of an electrical current
Ammeter is a low resistance galvanometer
It is used to measure the current in a circuit in amperes
Galvanometer can be converted into an ammeter by using a low resistance wire in parallel with the galvanometer
the resistance of the wire depends upon the range of the ammeter
As shunt resistance is small the combined resistance of the galvanometer & the shunt is very low hence the ammeter has much lower resistance than galvanometer
An ideal ammeter has zero resistance
It is the most common instrument used to measure voltage
It measure either AC or DC voltage
It is a measure of the voltage between two points of an electrical current
This is small Power point presentation about different types of capacitors. It deals with different applications of different capacitors.This ppt has some important classification of different capacitors
Describe
The construction of an inductor
How energy is stored in an inductor
The electrical properties of an inductor
Relationship between voltage, current, and inductance; power; and energy
Equivalent inductance when a set of inductors are in series and in parallel
Here you find the information about Transistors. And know about
-> Type Of Transistor:
->Region of Transistor:
->P-N Junction Diodes
->Transistor application
->Transistor Connections
Limitation:
->Future of transistor:
The basics of electronics can be watched through the link http://bit.ly/2PPv0mv
A Diode is a semiconductor device with two terminals, typically allowing the flow of current in one direction only.
a thermionic valve having two electrodes (an anode and a cathode).
The full basics of electronics can be look over in our link http://bit.ly/2PPv0mv
Resistors are very useful components in healthcare electronics so every healthcare engineers to learn about all these kinds of basic components
Types Of Capacitors And Their Applicationselprocus
Capacitor is one of mostly used component in electronic circuit design. It plays an important role in many of the embedded applications. A capacitor stores an electrical charge between the two plates and here are a few of the more common types of capacitors available.
Series op-amp regulator – IC voltage regulator – Switching regulator – Digital to analog converters–specifications–weighted resistor type– R-2R ladder type-Analog to digital converter –specifications–counter ramp, flash, successive approximation, dual slope types-Voltage to frequency converter–Frequency to voltage converter– Analog multiplier
This is small Power point presentation about different types of capacitors. It deals with different applications of different capacitors.This ppt has some important classification of different capacitors
Describe
The construction of an inductor
How energy is stored in an inductor
The electrical properties of an inductor
Relationship between voltage, current, and inductance; power; and energy
Equivalent inductance when a set of inductors are in series and in parallel
Here you find the information about Transistors. And know about
-> Type Of Transistor:
->Region of Transistor:
->P-N Junction Diodes
->Transistor application
->Transistor Connections
Limitation:
->Future of transistor:
The basics of electronics can be watched through the link http://bit.ly/2PPv0mv
A Diode is a semiconductor device with two terminals, typically allowing the flow of current in one direction only.
a thermionic valve having two electrodes (an anode and a cathode).
The full basics of electronics can be look over in our link http://bit.ly/2PPv0mv
Resistors are very useful components in healthcare electronics so every healthcare engineers to learn about all these kinds of basic components
Types Of Capacitors And Their Applicationselprocus
Capacitor is one of mostly used component in electronic circuit design. It plays an important role in many of the embedded applications. A capacitor stores an electrical charge between the two plates and here are a few of the more common types of capacitors available.
Series op-amp regulator – IC voltage regulator – Switching regulator – Digital to analog converters–specifications–weighted resistor type– R-2R ladder type-Analog to digital converter –specifications–counter ramp, flash, successive approximation, dual slope types-Voltage to frequency converter–Frequency to voltage converter– Analog multiplier
Electrical current, voltage, resistance, capacitance, and inductance are a few of the basic elements of electronics and radio. Apart from current, voltage, resistance, capacitance, and inductance, there are many other interesting elements to electronic technology. ... Use Electronics Notes to learn electronics online.
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.
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.
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.
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.
The French Revolution, which began in 1789, was a period of radical social and political upheaval in France. It marked the decline of absolute monarchies, the rise of secular and democratic republics, and the eventual rise of Napoleon Bonaparte. This revolutionary period is crucial in understanding the transition from feudalism to modernity in Europe.
For more information, visit-www.vavaclasses.com
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.
Safalta Digital marketing institute in Noida, provide complete applications that encompass a huge range of virtual advertising and marketing additives, which includes search engine optimization, virtual communication advertising, pay-per-click on marketing, content material advertising, internet analytics, and greater. These university courses are designed for students who possess a comprehensive understanding of virtual marketing strategies and attributes.Safalta Digital Marketing Institute in Noida is a first choice for young individuals or students who are looking to start their careers in the field of digital advertising. The institute gives specialized courses designed and certification.
for beginners, providing thorough training in areas such as SEO, digital communication marketing, and PPC training in Noida. After finishing the program, students receive the certifications recognised by top different universitie, setting a strong foundation for a successful career in digital marketing.
How to Make a Field invisible in Odoo 17Celine George
It is possible to hide or invisible some fields in odoo. Commonly using “invisible” attribute in the field definition to invisible the fields. This slide will show how to make a field invisible in odoo 17.
2. MRSMPARIT 2
This Photo by Unknown Author is licensed under CC BY
This Photo by Unknown Author is licensed under CC BY-SA
This Photo by Unknown Author is licensed under CC BY-SA-NC
This Photo by Unknown Author is licensed under CC BY-SA
4. p-n junction (Semiconductor diode)
4
p-type n-type
Positive hole Negative
electron
Symbol
p-n junction
MRSMAG #AGNO1
5. Diode in Forward-biased
5
p-type of the diode is connected
to ………………….
n-type is connected to the
…………………… of the
battery.
Electron moves across the p-n
junction
Current flow through the circuit
Diode is forward biased
+ -
MRSMAG #AGNO1
6. Diode in Reverse-biased
p-type of the diode is connected to
………………….
n-type is connected to the
…………………… of the battery.
Electrons and holes pulled away from
the p-n junction
No Current flow through the circuit
Diode is reverse biased
6
- +
MRSMAG #AGNO1
9. Diode as rectifier
A.C to D.C.
Rectification is a process to convert an alternating current into
a direct current by using a diode.
9
MRSMAG #AGNO1
10. Half-wave rectifier
10
• First half –cycle, diode is forward biased
•Current flow through the circuit
•Second half-cycle, diode is reversed biased
•No current flow
•Diode as half-wave rectifier
MRSMAG #AGNO1
11.
12. Full -wave rectifier
12
• First half –cycle, diode ____________are forward biased
•Current flow through the circuit
•Second half-cycle, diode ___________are forward biased
• Current flow through the circuit
•Diode as full -wave rectifier
To CRO
a
.
MRSMAG #AGNO1
18. store the electrical energy and
give this energy again to the circuit when necessary.
In other words, it charges and discharges the electric charge stored in it.
Other functions of a capacitor are as follows:
◦ It blocks the flow of DC and
◦ permits the flow of AC.
MRSMAG #AGNO1
Capacitor:
19. 19
To CRO
a
To CRO
a.
MRSMAG #AGNO1
As the output voltage increases, the capacitor is charged,
When the output voltage falls back to zero, the capacitor releases its
charge (discharge current)
Steady output voltage is maintained across a resistor
24. extra
The arrow in the symbol indicates the direction of flow of
conventional current in the emitter with forward biasing
applied to the emitter-base junction.
Definition: The transistor is a semiconductor device which
transfers a weak signal from low resistance circuit to high
resistance circuit. The words trans mean transfer
property and istor mean resistance property offered to the
junctions. In other words, it is a switching device which
regulates and amplify the electrical signal likes voltage or
current.
MRSMAG #AGNO1
32. Current Amplifier
Collector current = 1000 x base current
Ic = 1000 x IB
Slow sound amplified by transistor –
become louder sound that spread out
Through the loudspeaker.
MRSMAG #AGNO1
33. When the switch is open, bulb L1 does not light up as the circuit
is _______________
the base current, IB is ____________.
Bulb L2 does not light up although the collector circuit is
complete because the transistor is ___________________ on
and the collector current, Ic is zero.
Close the switch, bulb L1 is dim ∵ RB has a high resistance
The base current, IB is very small.
L2 lights up brightly ∵ the collector current, Ic is larger than IB .
A small IB can produce a minimum base voltage, VBE to turn
on the collector circuit.
The IB can control the flow of the Ic .
This enables the transistor to act as a switch.
The resistance at the base circuit, RB is large to limit the IB
So that the transistor will not become too hot and burn.
34.
35.
36.
37. Light-dependent resistor (LDR) is a type of resistor.
Its resistance changes with the ________________ of light.
The LDR resistance value is ______________ when the light
intensity is low and vice versa.
In the dark, LDR resistance is very ____________________.
38.
39.
40. A thermistor is a resistor.
Its whose resistance changes with its surrounding _______________.
The resistance is ________________ under room temperature conditions
(low temperature).
As the surrounding temperature increases, the resistance becomes
____________ and voltage across the thermistor ________________.
41. Transistor
as a switch
To make the bulb lights up at night,
you have to interchange the position of
LDR and resistor 10 kΩ
Because, at night, resistance of LDR
increases
Then no base current, IB = 0 , no IB flow
to transistor
Therefore , no collector current , Ic =0 ,
no Ic flow to transistor also
Transistor is off
42. Transistor
as a switch
Example :
1. transistor is used as a switch for
streetlamp –
At night , the streetlamps turn on
Daytime, the streetlamps turn off
2. transistor also can be used to
activate fire alarm. Discuss
MRSMAG #AGNO1