AIPMT MAINS2009Physics-Electromagnetic Induction
AIPMT MAINS 2009 Physics Induced EMF MCQ Question
Type: MCQ-conceptual-Hard-Class 12
A rectangular, a square, a circular and an elliptical loop, all in the (x - y) plane, are moving out of a uniform magnetic field with a constant velocity, v⃗ = v î. The magnetic field is directed along the negative z axis direction. The induced emf, during the passage of these loops, out of the field region, will not remain constant for:
A
the circular and the elliptical loops.
B
only the elliptical loop.
C
only the circular loop.
D
all the loops.
Correct Answer
Option C
Detailed Explanation
The rate of change of magnetic flux is not constant for the elliptical loop due to its varying area as it exits the field, unlike the other shapes.
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