In a series RC circuit, the measured RMS voltages are Vᵣ = 60 V and Vᴄ = 80 V. Determine the applied RMS voltage and the power factor of the circuit.
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In a series RC circuit, the measured RMS voltages are Vᵣ = 60 V and Vᴄ = 80 V. Determine the applied RMS voltage and the power factor of the circuit.

G1 Physics · Accepted Answer

For a series RC circuit, V = √[Vᵣ² + Vᴄ²] = √(60² + 80²) = 100 V. The power factor is cosφ = Vᵣ/V = 60/100 = 3/5.