Physics-Motional EMF
NEET Physics Motional EMF MCQ Question
Type: MCQ-fact-Easy-Class 12
What is the formula for calculating the induced emf when a rod moves at right angles to a magnetic field?
A
ε = Bvl
B
ε = Bv²
C
ε = Blv²
D
ε = Bv/l
Correct Answer
Option A
Detailed Explanation
The formula for calculating the induced emf in a rod moving at right angles to a magnetic field is ε = Bvl, where B is the magnetic field strength, v is the velocity of the rod, and l is the length of the rod, as mentioned in the NCERT context.
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