The variation of induced emf (e) with time (t) in a coil if a short bar magnet is moved along its axis with a constant velocity is best represented as
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
B
Polarity of emf will be opposite in the two cases while entering and while leaving the coil. Only in this option polarity is changing. Hence, the correct option is
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