The number of free electrons increases with increase in temperature.

There are no free electrons at any temperature

The number of free electrons is more than in a conductor.

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What is a practical application of insulators?

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Important Questions on Electricity

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Science>Physics>Electricity>Conductors and Insulators

Which material is an insulator?

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Science>Physics>Electricity>Conductors and Insulators

What is the primary function of an insulator in circuits?

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Science>Physics>Electricity>Conductors and Insulators

What does the conduction of electron depends upon?

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Science>Physics>Electricity>Conductors and Insulators

Why are metals better conductors than non-metals?

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Science>Physics>Electricity>Conductors and Insulators

Which of the following is an application of conductors?

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Science>Physics>Electricity>Conductors and Insulators

Which of the following is a poor conductor of electricity?

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Which of the following is a feature of insulators?

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Science>Physics>Electricity>Conductors and Insulators

Electric conduction in a semiconductor takes place due to

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Science>Physics>Electricity>Conductors and Insulators

What property makes rubber a good insulator?

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Science>Physics>Electricity>Conductors and Insulators

What distinguishes a conductor from an insulator?

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Science>Physics>Electricity>Conductors and Insulators

Which of the following is not an insulator?

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Science>Physics>Electricity>Conductors and Insulators

What is the role of free electrons in conductors?

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Science>Physics>Electricity>Conductors and Insulators

Which material is used as a conductor in overhead power lines?

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Science>Physics>Electricity>Conductors and Insulators

Which of the following is a good conductor of electricity?

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Science>Physics>Electricity>Conductors and Insulators

In a semiconductor

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Science>Physics>Electricity>Conductors and Insulators

Why do conductors heat up when current flows through them?

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Science>Physics>Electricity>Conductors and Insulators

In conducting materials electrons are _____ bounded with atoms.

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Science>Physics>Electricity>Conductors and Insulators

In the following figure, a battery of $2$ volt is connected between $A$ and $B .$ It is assumed that the resistance of a diode is zero in forward bias and infinite in reverse bias. If positive terminal of the battery is connected to $A,$ then the current flowing in the circuit will be,

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