NEETPhysics-Current Electricity
NEET Physics Drift Velocity MCQ Question
Type: MCQ-conceptual-Medium-Class 12
In the given figure, a battery of emf E is connected across a conductor PQ of length 'l' and different area of cross-sections having radii r₁ and r₂ (r₂ < r₁). Choose the correct option as one moves from P to Q:
A
Drift velocity of electron increases.
B
Electric field decreases.
C
Electron current decreases.
D
All of the above
Correct Answer
Option A
Detailed Explanation
As the area of cross-section decreases, the drift velocity increases to maintain the current continuity.
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