Standard Books Physics Electric Current MCQ Question with Solution

Across a metallic conductor of non-uniform cross section a constant potential difference is applied. The quantity which remains constant along the conductor is:

A

current

B

drift velocity

C

electric field

D

current density

Correct Answer

Option A

Detailed Explanation

Current is defined as charge flown per unit time, it should remain the same along any cross section as there is no accumulation of charge in the conductor. Hence, current will remain constant.

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