Power factor and three-phaseQuestion 1023 of 1506

Will a change in phase rotation change the current in a balanced three-phase bank of heating elements?

Yes, the current doubles
No, resistive loads are not affected
Yes, the current falls to zero
Yes, the heating elements change polarity

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Correct answer: No, resistive loads are not affected

Voltage and current sizes stay the same for a resistive load.

Source: Lessons in Electric Circuits II: AC (Kuphaldt), 7.3: Phase Rotation

Questions last reviewed: 18 October 2026

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