RL Circuit

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If the frequency is halved and the resistance is doubled, the impedance of a series RL circuit

When the frequency of the voltage applied to a series RL circuit is increased, the phase angle _________.

When the frequency is decreased, the impedance of a parallel RL circuit

In an RL circuit, the impedance is determined by both the ______ and the _______ combined.

When the resistor voltage in a series RL circuit becomes less than the inductor voltage, the phase angle ______?

A 1.5 kΩ resistor and a coil with a 2.2 kΩ inductive reactance are in series across an 18 V ac source. The power factor is

A 20-H coil is connected across a 110-V 60-Hz power line. If the coil has zero resistance, What will be the value of the current drawn.

A 140 Ω resistor is in parallel with an inductor having 60 Ω inductive reactance. Both components are across a 12 V ac source. The magnitude of the total impedance is

If a load is purely inductive and the reactive power is 12 VAR, the apparent power is

A 47Ω resistor is in series with an inductive reactance of 120 Ω across an ac source. The impedance, expressed in polar form is

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