JEE Main2005PhysicsElectromagnetic InductionActual
The self inductance of the motor of an electric fan is 10 H . In order to impart maximum power at 50 ~Hz , it should be connected to a capacitance of
Options
- AC=4 F
- BC=8 F
- CC=1 F
- DC=2 F
Correct answer
C. C=1 F
Step-by-step solution
f= 1 2 L C C= 1 4 ^2 f^2 10 C=1 F