STANDARDPhysics-Electromagnetic Induction
STANDARD Physics Induced EMF MCQ Question
Type: MCQ-conceptual-Medium-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, v = 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 filed region, will not remain constant for
A
The circular and the elliptical loops.
B
Only the elliptical loop.
C
Any of the four loops.
D
The rectangular, circular and elliptical loops.
Correct Answer
Option A
Detailed Explanation
When the loops are being drawn out of the field, the rate at which the number of field lines cutting through the loop decreases will be a constant for square and rectangle loops, but not for circular or elliptical shapes.
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