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Assertion:The electrical resistance of a...

Assertion:The electrical resistance of any object decrease with increase in its length.
Reason: Electrical resistance of any object increases with increase in its area of cross-section.

A

If both assertion and reason are true and reason is the correct explanation of assertion .

B

If both assertion and reason are true but reason is not the correct explanation of assertion .

C

If assertion is true but reason is false .

D

If both assertion and reason are false .

Text Solution

Verified by Experts

The correct Answer is:
D
`R prop l/A`, hence it increases with increase in the length of the object and decreases with increase in its area of cross -section
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