Q74
A large circular coil of N turns and radius R carries a time varying current I = I_0 ( t ). A small circular coil of n turns and radius r(r ≪ R) is placed at the centre of the large coil such that the coils are concentric and coplanar. The induced emf in the small coil
A large circular coil of N turns and radius R carries a time varying current A small circular coil of n turns and radius r(r ≪ R) is placed at the centre of the large coil such that the coils are concentric and coplanar. The induced emf in the small coil
A.
leads the current in the large coil by
B.
lags the current in the large coil by
C.
is in phase with the current in the large coil
D.
lags the current in the large coil by
AnswerAnswer: Option D
Solution
Answer: Option D
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