Question

Electricity

Electric Circuit

A continuous and closed path of an electric current

is called an electric circuit .If the circuit is open or

broken anywhere, the current stops flowing .

An electric circuit, comprises a cell (or a battery),

a plug key, electrical component(s), and connecting

wires.



Symbols

Conventional symbols used to represent some of

the most commonly used electrical components.

Components Symbols

Connecting

wires ,

Resistor





Cell

Battery

Plug /Key

Bulb



Ammeter

Voltmeter

1. What is meant by saying that the potential

difference between two points is 1V?

2. Draw the symbols of the given components

used in an electric circuit diagram -- Battery,

Cell, Resistor and closed key.

3. Name the device that helps to maintain

potential difference across a conductor.

4. Differentiate between Open and closed circuits.

The electric potential difference between

two points in an electric circuit carrying

some current is defined as-

Ø the work done to move a unit charge

from one point to the other.

Ø Potential difference = Work done(W) /

Charge (Q)

Ø V = W/Q

Ø The SI unit of electric potential

difference is volt (V).

Ø One volt is the potential difference

between two points in a current carrying

conductor when 1 joule of work is done

to move a charge of 1 coulomb from

one point to the other.

Ø 1 volt = 1 joule/ 1 coulomb

Ø1V =1JC-1

.

ØThe potential difference is measured by

means of an instrument called the

voltmeter.

ØThe voltmeter is always connected in

parallel across the points between which

the pot. diff. is to be measured.​

Answer 1

Answer:

sorry

Explanation:

it's too long to write

I can't write it

Answer 2

Answer:

electric circuit is a closed path which consist resistance, volt meter ,a meter key and electric cell which are connected by connecting wire.

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