Question 173: AC fundamentals

Question

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

Accepted Answer

For maximum power, ${X_L} = X{}_C,$ which yields
$C = {1 \over {{{\left( {2\pi n} ight)}^2}L}} = {1 \over {4{\pi ^2} 	imes 50 	imes 50 	imes 10}}$
$	herefore$ $C = 0.1 	imes {10^{ - 5}}F = 1\mu F$

Answer

$8\mu F$

Answer

$4\mu F$

Answer

$2\mu F$

Answer

$1\mu F$

AC fundamentals

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

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