AIPMT PRELIMS2005Physics-Electromagnetic Induction
AIPMT PRELIMS 2005 Physics Induced EMF and Current MCQ Question
Type: MCQ-conceptual-Medium-Class 12
As a result of change in the magnetic flux linked to the closed loop shown in the figure, an emf V volt is induced in the loop. The work done (joules) in taking a charge Q coulomb once along the loop is:
A
QV
B
zero
C
2QV
D
QV/2
Correct Answer
Option A
Detailed Explanation
The work done in moving a charge in a closed loop in the presence of an induced emf is zero because the net change in potential energy is zero.
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