Question

The reactance of a coil is 157 Ω. On connecting the coil across a source of frequency 100 Hz, the current lags behind the emf by 45°. The inductance of the coil is 

(A) 0.25 H 

(B) 0.5 H 

(C) 4 H 

(D) 314 H.

Answer 1

Correct option is (A) 0.25 H