At what position of the brush axis relative to the field axis does a repulsion motor produce zero torque?

Single Phase Induction Motors MCQs for PPSC, FPSC, NTS, and Pakistan government job tests. Select an option below, then read the explanation.

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Subject
Single Phase Induction Motorselectrical-engineering-mcqs › single-phase-induction-motors
Published
3 Oct 2018
Last updated
28 May 2026

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Explanation

In a repulsion motor, zero torque occurs when the brush axis is positioned 45° electrical to the field axis. This specific alignment causes the induced currents to cancel out torque production.

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