The current i in a coil varies with time as shown in the figure. The variation of induced emf with time would be
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
A
Induced emf, 
For 
i‐t graph is a straight line with positive constant slope.
constant
and constant 
For 
is constant 
For 
For 
i‐t graph is a straight line with negative constant slope.
constant
and constant For 
For 
is zero 
For 
From this analysis, the variation of induced emf with time is as shown in the figure.
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