Match the following: (a) Conductor (i) Save appliances (b) Button cell (ii) Graphite (c) Lead accumulator (iii) A combination of cells (d) MCBs (iv) Secondary cell (e) Battery (v) Used in wrist watches

(a) Conductor - (ii) Graphite Materials that allow electricity to pass through them easily are called conductors. Graphite is an example of conductor. It is the only non-metal which is a conductor. (b) Button cell - (v) used in wristwatches Cells are devices that convert chemical energy into electrical energy. Button cells are primary cells. They are used in wristwatches. (c) Lead accumulator - (iv) Secondary cell Lead accumulator is an example of a secondary cell. Secondary cells are also known as rechargeable cells as they can be used again even after all the chemicals are used up. (d) MCBs - (i) save appliances A device known as a fuse is connected in the circuit for safety purpose. When the current in the circuit exceeds the safe limit, it causes overheating of the wire. As a result, the fuse melts and breaks the circuit and thus saves the appliances. Nowadays, the fuse has been replaced by MCBs (Miniature Circuit-Breakers). (e) Battery - (iii) A combination of cells Some devices need more energy to function than that provided by a single cell. In such cases, two or more dry cells are placed in such a manner that the positive terminal of one cell remains in contact with the negative terminal of the other cell. Such a combination of cells is called a battery. (a) Conductor (ii) Graphite (b) Button cell (v) Used in wristwatches (c) Lead accumulator (iv) Secondary cell (d) MCBs (i) Save appliances (e) Battery (iii) A combination of cells

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

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List various components of electric circuit.

Important Questions on Electricity

EASY

Science>Physics>Electricity>Electric Circuits

What is a conductor of electricity? Give two examples.

MEDIUM

Science>Physics>Electricity>Electric Circuits

What are conductors? Give two examples.

EASY

Science>Physics>Electricity>Electric Circuits

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

EASY

Science>Physics>Electricity>Electric Circuits

What is an electric circuit?

MEDIUM

Science>Physics>Electricity>Electric Circuits

Match the following:

(a) Conductor	(i) Save appliances
(b) Button cell	(ii) Graphite
(c) Lead accumulator	(iii) A combination of cells
(d) MCBs	(iv) Secondary cell
(e) Battery	(v) Used in wrist watches

EASY

Science>Physics>Electricity>Electric Circuits

Why is it advised not to touch an electric switch, plug or device with wet hands?

EASY

Science>Physics>Electricity>Electric Circuits

Choose the odd one out.

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Science>Physics>Electricity>Electric Circuits

When a switch is in the ‘off’ position, the electric circuit is closed.

EASY

Science>Physics>Electricity>Electric Circuits

What do we need to make a device which works on electricity?

EASY

Science>Physics>Electricity>Electric Circuits

Choose the incorrect statement about the series circuit.

EASY

Science>Physics>Electricity>Electric Circuits

Electric current can easily flow through copper.

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Science>Physics>Electricity>Electric Circuits

How is an electric bulb connected to a cell?

EASY

Science>Physics>Electricity>Electric Circuits

Answer in one word.
Materials which allow the flow of electric current through them. (conductors/insulators)

EASY

Science>Physics>Electricity>Electric Circuits

Electric current flows only if the circuit is _____.

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Science>Physics>Electricity>Electric Circuits

Fill in the blank space by choosing correct words from the list given below:
List: open circuit, insulator, terminal, circuit, chemicals.
An electric _____ is a continuous path along which the current flows.

EASY

Science>Physics>Electricity>Electric Circuits

The statements given below are incorrect. Write the correct statements.
When an electric circuit is closed, no current flows through it.

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Science>Physics>Electricity>Electric Circuits

What is an electric circuit? What are its various parts?

EASY

Science>Physics>Electricity>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

EASY

Science>Physics>Electricity>Electric Circuits

An electric _____ is a closed path through which the electric current flows.

EASY

Science>Physics>Electricity>Electric Circuits

Metals have ______ resistance.

List various components of electric circuit.

Important Questions on Electricity

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