Problem: A RL circuit is driven by an AC generator as shown in the figure.The voltages across the resistor and the inductor are _________.A. always out of phaseB. always in phaseC. sometimes in phase and sometimes out of phaseBriefly explain your reasoning.

FREE Expert Solution

The voltage across the inductor leads the voltage across the resistor by 90°.

The voltage across the inductor and the resistor are scaled by the current produced by the generator, dependent on time. 

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Problem Details

A RL circuit is driven by an AC generator as shown in the figure.

The voltages across the resistor and the inductor are _________.

A. always out of phase

B. always in phase

C. sometimes in phase and sometimes out of phase

Briefly explain your reasoning.

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What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Phasors for Inductors concept. You can view video lessons to learn Phasors for Inductors. Or if you need more Phasors for Inductors practice, you can also practice Phasors for Inductors practice problems.