STANDARD Physics Electric Current MCQ Question
Across a metallic conductor of non-uniform cross section a constant potential difference is applied. The quantity which remains constant along the conductor is:
current
drift velocity
electric field
current density
Correct Answer
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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