Question

A coil of self- induction 0.5 H, its ohmic resistance is 10 ⦠carrying a dc current of intensity 2 A, The voltage at its terminals isâ¦â¦ A. Zero

B. 20
C. 5
D. 0.2

Answer 1

Option (B)

Step-by-step explanation:

L = 0.5 H, I = 2 A, R = 10 Ohm

V = I R

In case of dc the inductor cannot works.

V = 2 x 10 = 20 V