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.

E M B I B E

Science>Physics>Electricity>Conductors and Insulators

HARD

Earn 100

Why are metals better conductors than non-metals?

50% studentsanswered this correctly

Important Questions on Electricity

MEDIUM

Science>Physics>Electricity>Conductors and Insulators

Which of the following is a feature of insulators?

HARD

Science>Physics>Electricity>Conductors and Insulators

What is the primary function of an insulator in circuits?

EASY

Science>Physics>Electricity>Conductors and Insulators

What does the conduction of electron depends upon?

MEDIUM

Science>Physics>Electricity>Conductors and Insulators

Which of the following is a good conductor of electricity?

MEDIUM

Science>Physics>Electricity>Conductors and Insulators

Which of the following is an application of conductors?

MEDIUM

Science>Physics>Electricity>Conductors and Insulators

Which of the following is a poor conductor of electricity?

EASY

Science>Physics>Electricity>Conductors and Insulators

Why are insulators used in electrical wiring?

EASY

Science>Physics>Electricity>Conductors and Insulators

Electric conduction in a semiconductor takes place due to

EASY

Science>Physics>Electricity>Conductors and Insulators

What property makes rubber a good insulator?

HARD

Science>Physics>Electricity>Conductors and Insulators

What distinguishes a conductor from an insulator?

EASY

Science>Physics>Electricity>Conductors and Insulators

Which of the following is not an insulator?

HARD

Science>Physics>Electricity>Conductors and Insulators

What is the role of free electrons in conductors?

HARD

Science>Physics>Electricity>Conductors and Insulators

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

HARD

Science>Physics>Electricity>Conductors and Insulators

Which material is an insulator?

MEDIUM

Science>Physics>Electricity>Conductors and Insulators

In a semiconductor

EASY

Science>Physics>Electricity>Conductors and Insulators

Why do conductors heat up when current flows through them?

EASY

Science>Physics>Electricity>Conductors and Insulators

In conducting materials electrons are _____ bounded with atoms.

EASY

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,

Question Image