Question
Physics Question on Resistance
A 12V battery connected to a coil of resistance 6Ω through a switch, drives a constant current in the circuit. The switch is opened in 1ms. The emf induced across the coil is 20V. The inductance of the coil is:
A
5mH
B
8mH
C
10mH
D
12mH
Answer
10mH
Explanation
Solution
The correct option is(C): 10mH