Electrical Engineering · Electrical Machines
Assertion (A): Detent torque is present in permanent magnet stepper motors even when the stator windings are unpowered. Reason (R): Detent torque arises due to the magnetic attraction between the permanent magnet rotor poles and the stator teeth.
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Both A and R are true, but R is not the correct explanation of A.
- 2Both A and R are false.
- 3A is false, but R is true.
- 4Both A and R are true, and R is the correct explanation of A.✓
Correct answer
Both A and R are true, and R is the correct explanation of A.
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