A metallic ring is dropped down, keeping its plane perpendicular to a constant and horizontal magnetic field. The ring enters the region of magnetic field at 
and completely emerges out at 
second. The current in the ring varies as
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
B
When ring enters and leaves, then the field polarity of induced emf is opposite. Also, during the stay of ring completely in the field, there is no induction. These variations are correctly shown in .
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