A solenoid has 2000 turns would over a length of 0.30 m. The area of its cross-section is 
. If an initial current of 2 A in the solenoid is reversed in 0.25 s, then the emf induced in the coil is
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
D
Induced emf, 
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