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Explain the following:How does the resis...

Explain the following:How does the resistance of a wire vary with its area of cross-section?

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Direction. In the follwing questions, a statement of assertion is followed by a statement of reason. While answering a question, you are required to choose the correct are out of the given four responses and mark it as (A). If both assertion and reason are true and reason is the correct explanation of the assertion, (B) if both assertion and reason are true but reason is not correct explanation of the assertion. (C) if asssertion is true, but reason if false, (D) if both assertion and reason are false Assertion : The resistance of a wire varies inversely as its area of cross-section. Reason : The resistance of a wire varies inversely as its radius.

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