To an ac power supply of 220 V at 50 Hz, a resistor of 20 $\Omega$, a capacitor of reactance 25 $\Omega$ and an inductor of reactance 45 $\Omega$ are connected in series. The corresponding current in the circuit and the phase angle between the current and the voltage is, respectively:

Question

Dr. Abubacker · Accepted Answer

[Solution by Claude - not from source] $Z=\sqrt{20^2+(45-25)^2}=20\sqrt2\approx28.3\,\Omega$; $I=220/28.3\approx7.8$ A; $	an\phi=\frac{20}{20}=1\Rightarrow\phi=45^\circ$. Answer (2).

Q. To an ac power supply of 220 V at 50 Hz, a resistor of 20 $\Omega$, a capacitor of reactance 25 $\Omega$ and an inductor of reactance 45 $\Omega$ are connected in series. The corresponding current in the circuit and the phase angle between the current and the voltage is, respectively:

Explanation

Reviewed by Dr. Abubacker

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