The phase angle (θ) of a series RL circuit varies directly with frequency.

More Questions from RL Circuits

• A power factor of 1 indicates a purely reactive circuit, and a power factor of 0 indicates a purely resistive circuit.
• Total current in an RL circuit always lags the source voltage.
• In a lag network, the output voltage lags the input voltage in phase.
• The resistor voltage in an RL circuit is always out of phase with the current.
• A filter passes certain frequencies and rejects others.
• In an RL circuit, the impedance is determined by both the resistance and the inductive reactance combined.
• The power factor indicates how much of the apparent power is reactive power.
• The impedance of an RL circuit varies inversely with frequency.
• In an RL circuit, part of the power is resistive and part is reactive.

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