When current in a coil changes from 5 A to 2 A in 0.1 s, average voltage of 50 V is produced. The self-inductance of the coil is
A. 1.67 H
B. 6 H
C. 3 H
D. 0.67 H
Answer:A
When current in a coil changes from 5 A to 2 A in 0.1 s, average voltage of 50 V is produced. The self-inductance of the coil is
A. 1.67 H B. 6 H C. 3 H D. 0.67 H