Question: A coil is connected to a 60-Hz, 100-V ac generator. At this frequency the coil has an impedance of 10 and a reactance of 8.

A coil is connected to a 60-Hz, 100-V ac generator. At this frequency the coil has an impedance of 10Ω and a reactance of 8Ω.

(a) What is the current in the coil?

(b) What is the phase angle between the current and the applied voltage?

(c) What series capacitance is required so that the current and voltage are in phase?

(d) What then is the voltage measured across the capacitor?


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