The document discusses power and energy in electric circuits. It defines electrical power as the rate at which electrical energy is transferred by a circuit, calculated as the product of current and voltage (P=VI). Common devices and their power consumption are provided as examples. The relationship between power, current, voltage and resistance is explored, and formulas for calculating power from these variables are derived and practiced in sample quiz questions. Kilowatt-hours are defined as a unit of energy used to bill customers for electricity usage.
it is the knowledge of the electrical circuit 2 that will help us to update our knowledge and encourage the student to gather the knowledge and upgrade themselves
As electric field, that is, force per unit charge is a vector quantity; it can be used to represent overall effect of electric field in system of electric charges. Similarly electric field can be used in pictorial form to describe the overall intensity of the field. Copy the link given below and paste it in new browser window to get more information on Electric Field Lines www.askiitians.com/iit-jee-electrostatics/electric-field-lines/
it is the knowledge of the electrical circuit 2 that will help us to update our knowledge and encourage the student to gather the knowledge and upgrade themselves
As electric field, that is, force per unit charge is a vector quantity; it can be used to represent overall effect of electric field in system of electric charges. Similarly electric field can be used in pictorial form to describe the overall intensity of the field. Copy the link given below and paste it in new browser window to get more information on Electric Field Lines www.askiitians.com/iit-jee-electrostatics/electric-field-lines/
Current and Electricity for class 10.pdfJackHassan2
Download our comprehensive Class 10 Current and Electricity PDF guide to master the fundamentals of electrical circuits, current flow, and key concepts in this critical science topic. This PDF provides clear explanations, diagrams, and practice questions to enhance your understanding and preparation. Covering the essential curriculum, it's an invaluable resource for students aiming for excellence in their science studies.
Current and Electricity for class 10.pdfJackHassan2
Download our comprehensive Class 10 Current and Electricity PDF guide to master the fundamentals of electrical circuits, current flow, and key concepts in this critical science topic. This PDF provides clear explanations, diagrams, and practice questions to enhance your understanding and preparation. Covering the essential curriculum, it's an invaluable resource for students aiming for excellence in their science studies.
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Instructions for Submissions thorugh G- Classroom.pptxJheel Barad
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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.
Ethnobotany and Ethnopharmacology:
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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 Indian economy is classified into different sectors to simplify the analysis and understanding of economic activities. For Class 10, it's essential to grasp the sectors of the Indian economy, understand their characteristics, and recognize their importance. This guide will provide detailed notes on the Sectors of the Indian Economy Class 10, using specific long-tail keywords to enhance comprehension.
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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.
How to Create Map Views in the Odoo 17 ERPCeline George
The map views are useful for providing a geographical representation of data. They allow users to visualize and analyze the data in a more intuitive manner.
2. POWER AND ENERGY IN ELECTRIC CIRCUITS
The resting human body uses
around 100 W of power—similar
to an incandescent light bulb.
A desktop computer + monitor
uses 150-200 W.
A laptop uses only 50 W.
3. POWER AND ENERGY IN ELECTRIC CIRCUITS
Recalling that power is the rate at which energy changes,
P = ΔE/Δt,
we can express the electric power as follows:
P = ΔE/Δt = (ΔQ)V/Δt
Knowing that the electric current is given by
I = (ΔQ)/Δt
allows us to write an expression for the electric power in terms of
the current and voltage.
6. POWER AND ENERGY IN ELECTRIC CIRCUITS
Power is the rate at which
work is done or energy
transferred or transformed.
7. ELECTRIC POWER
Thus, the electric power used by a device is equal to the
current times the voltage. For example, a current of 1 amp
flowing across a potential difference of 1 V produces a
power of 1 W.
8. ELECTRIC POWER IN THE HOME
We all use electricity in our homes.
• Are our homes wired in series or in parallel?
• How do we make sure these circuits are safe?
• How are we billed for the electricity we use?
9. ELECTRIC COMPANIES SELL ENERGY
Your local power company charges
homeowners and companies in
kilowatt-hours (kWh).
• One kilowatt-hour is 1000 W of
power used continuously for
one hour of time.
• Kilowatt-hours are units
of energy, not power!
10. POWER DISSIPATION
This power represents the energy per unit time
delivered to, or consumed by, an electrical
component having a current I and a potential
difference V.
11. QUIZ 1
Use the definition of resistance R = V / I. together with the one we
just derived (P = VI) to derive the following formula:
P = I 2R
12. QUIZ 2
Use the definition of resistance R = V / I. together with the one we
just derived (P = VI) to derive the following formula:
P = V2/ R.
13. QUIZ 3
The graph shows the V-I
characteristics of a tungsten
filament lamp. What is its power consumption
at I = 0.5 mA and at I = 1.5 mA?
14. QUIZ 4
Two 40 Ω resistors are connected in parallel to a 60-V battery.
a) How much total current flows through the circuit?
a) What is the power output of this circuit?
15. QUIZ 4
Two 40 Ω resistors are connected in parallel to a 60-V battery.
a) How much total current flows through the circuit?
a) What is the power output of this circuit?
