Question
Physics Question on Electromagnetic induction
An inductor coil with an internal resistance of 50 Ω stores magnetic field energy 180 mJ and dissipates energy as heat at the rate of 200 W when a constant current 9 passed through it. The inductance of the coil will be:
A
90 mH
B
120 mH
C
45 mH
D
30 mH
E
60 mH
Answer
90 mH
Explanation
Solution
The correct answer is (A): 90 mH