#### Question

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

(a) 0·25 H

(b) 0·5 H

(c) 4 H

(d) 314H

#### Solution

(a) 0·25 H

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#### APPEARS IN

Solution What is the Inductance of the Coil Concept: Reactance and Impedance.