Question

Assertion (A): In a non-conductor (insulator), the charge resides at a point, where there is an excess or deficit of electrons. It does not flow.

Reason (R): A conductor has a large number of free elections in it, which can flow throughout the volume of the conductor.

Options

• Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of Assertion (A).

• Both Assertion (A) and Reason (R) are true but Reason (R) is not the correct explanation of Assertion (A).

• Assertion (A) is false, but Reason (R) is true.

• Assertion (A) is true, but Reason (R) is false.

Answer 1

Both Assertion (A) and Reason (R) are true but Reason (R) is not the correct explanation of Assertion (A).

Explanation:

In an insulator, charge stays where it is formed because there are no free electrons, so the assertion is true. Conductors have many free electrons that can move through the whole volume, so the reason is also true. However, the reason talks about conductors; it does not explain why charge remains fixed in an insulator.