Physics-Motional EMF
NEET Physics Motional EMF MCQ Question
Type: MCQ-diagram based-Hard-Class 12
Consider a straight conducting rod of length L moving with a velocity v perpendicular to a uniform magnetic field B. Which of the following expressions correctly describes the magnitude of the motional emf induced across the ends of the rod?
A
Blv
B
BvL^2
C
B^2Lv
D
Bv/L
Correct Answer
Option A
Detailed Explanation
The induced emf e = Blv arises due to the motion of the conductor PQ with speed v in a magnetic field B, causing a change in magnetic flux.
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