Match the statements in Column A with those in Column B. Column A Column B 1. The path along which an electric current flows. (a) Electric current 2. A device which converts the chemical energy into electrical energy. (b) Insulator 3. A material which does not allow the electric current to pass through it. (c) Cell 4. The energy which flows in an electric circuit. (d) Conductor 5. A material which allows the electric current to flow through it. (e) Electric circuit

The path along which an electric current flows - Electric circuit The complete path from one terminal of an electric cell through the bulb and back to the other terminal of the electric cell is called an electric circuit. A device which converts the chemical energy into electrical energy - Cell An electrical cell is an "electrical power supply". A material which does not allow the electric current to pass through it - Insulator Materials which do not allow the electric current to flow through them are called electric insulators. The energy which flows in an electric circuit - Electric current Current flows through a closed circuit. A material which allows the electric current to flow through it - Conductor Materials which allow the electric current to flow through them are called electric conductors. Column A Column B 1. The path along which an electric current flows. (e) Electric circuit 2. A device which converts the chemical energy into electrical energy. (c) Cell 3. A material which does not allow the electric current to pass through it. (b) Insulator 4. The energy which flows in an electric circuit. (a) Electric current 5. A material which allows the electric current to flow through it. (d) Conductor

EASY

Earn 100

Draw a circuit diagram with a cell, a bulb and a switch in the 'OFF' position.

Important Questions on Electricity and Circuits

EASY

Science>Physics>Electricity and Circuits>Electric Circuits

Define potential difference.

EASY

Science>Physics>Electricity and Circuits>Electric Circuits

How can a continuous flow of current be obtained? What are the sources of energy and name of the devices required for continuous flow of current?

MEDIUM

Science>Physics>Electricity and Circuits>Electric Circuits

What is the meaning of the statement “The potential difference between two points is

1 V

” ? Name the device used to measure potential difference. What is resistance of a conductor? What is electric power? Write three formulae used to find electric power.

EASY

Science>Physics>Electricity and Circuits>Electric Circuits

Why are metals good conductors of electricity whereas glass is a bad conductor of electricity? Give reason.

EASY

Science>Physics>Electricity and Circuits>Electric Circuits

Four bulbs

B_{1}

B_{2}

B_{3}

and

B_{4}

100 W

each are connected to

220 V

main as shown in the figure. The reading in an ideal ammeter will be

EASY

Science>Physics>Electricity and Circuits>Electric Circuits

How much work is done in moving a charge of

5 C

across two points having a potential difference

15 V ?

EASY

Science>Physics>Electricity and Circuits>Electric Circuits

How much work is done in moving a charge of $2 C$ across two points having a potential difference $10 V$ ?

EASY

Science>Physics>Electricity and Circuits>Electric Circuits

$15$ cells each of emf $2$ volt are connected in series but $2$ of them are connected wrongly. Calculate the emf of the combination.

EASY

Science>Physics>Electricity and Circuits>Electric Circuits

How much energy is given to each coulomb of charge passing through a

6 V

battery?

MEDIUM

Science>Physics>Electricity and Circuits>Electric Circuits

Several lamps of

50 W

and

100 V

rating are available. How many of them can be connected in parallel across a battery of a

120 V

of internal resistance

10 Ω

, so that all bulbs glow in full power?

MEDIUM

Science>Physics>Electricity and Circuits>Electric Circuits

What are conductors? Give two examples.

EASY

Science>Physics>Electricity and Circuits>Electric Circuits

In the given circuit diagram, identify the objects marked as $1, 2, 3$ .

Question Image

EASY

Science>Physics>Electricity and Circuits>Electric Circuits

What is a conductor of electricity? Give two examples.

EASY

Science>Physics>Electricity and Circuits>Electric Circuits

How much work is done in moving a charge of

3 C

across two points having a potential difference

15 V

EASY

Science>Physics>Electricity and Circuits>Electric Circuits

In a large building, there are 15 bulbs of 40 W, 5 bulbs of 100 W, 5 fans of 80 W and 1 heater of 1 kW. The voltage of the electric mains is 220 V. The minimum capacity of the main fuse of the building will be:

EASY

Science>Physics>Electricity and Circuits>Electric Circuits

Write the circuit symbol of p-n-p transistor.

EASY

Science>Physics>Electricity and Circuits>Electric Circuits

Which of the following materials are used for making an electric circuit?

EASY

Science>Physics>Electricity and Circuits>Electric Circuits

Match the statements in Column A with those in Column B.

Column A	Column B
1. The path along which an electric current flows.	(a) Electric current
2. A device which converts the chemical energy into electrical energy.	(b) Insulator
3. A material which does not allow the electric current to pass through it.	(c) Cell
4. The energy which flows in an electric circuit.	(d) Conductor
5. A material which allows the electric current to flow through it.	(e) Electric circuit

MEDIUM

Science>Physics>Electricity and Circuits>Electric Circuits

Write the odd-one out giving reason.

Open electrical circuit, Circuit diagram, Battery, Closed electric circuit, Switch

MEDIUM

Science>Physics>Electricity and Circuits>Electric Circuits

Draw the symbols for the circuit elements such as a single electric cell, an electric bulb, battery, open switch and closed switch.

Draw a circuit diagram with a cell, a bulb and a switch in the 'OFF' position.

Important Questions on Electricity and Circuits

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