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 .

Assertion:The electrical resistance of any object decrease with increa

1.	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 .
Answer» Correct Answer - 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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What are elementary reactions ?

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