electro_magnetic_induction static_emi Question 75

Question: In circular coil, when no. of turns is doubled and resistance becomes $ \frac{1}{4}th $ of initial, then inductance becomes [AIEEE 2002]

Options:

A) 4 times

B) 2 times

C) 8 times

D) No change

Answer:

Correct Answer: A

Solution:

$ L\propto N^{2} $