An inductor and a resistor are connected in series to an ac source. If the power factor of the circuit is 0…
An inductor and a resistor are connected in series to an ac source. If the power factor of the circuit is 0.5 , the ratio of the resistance of the resistor and the reactance of the inductor is
$1:1$
$1: \sqrt{2}$
$1: \sqrt{3}$
$1: 2$
Solution
Power factor of the circuit $=0.5$
$\text { Ratio }=\frac{\mathrm{R}}{\mathrm{Z}}=0.5=\frac{1}{2}$