Directions: In the following questions, a statement of Assertion (A) is followed by a statement of Reason (R). Mark the correct choice as: |
Assertion (A): The resistance of a conductor decreases with increase in cross-sectional area. |
Reason (R): On increasing the cross-sectional area of a conductor, more current will flow through the conductor. |
A) Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of Assertion (A)
B) Both Assertion (A) and Reason (R) are true but Reason (R) is not the correct explanation of Assertion (A)
C) Assertion (A) is true but Reason (R) is false
D) Assertion (A) is false and Reason (R) is also false
Correct Answer: A
Solution :
(a) Increasing the cross-sectional area increases the space available for electrons to flow, which decreases the resistance of the conductor.You need to login to perform this action.
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