MotorsQuestion 1241 of 1506

Where must a Hall effect sensor be mounted in a brushless DC motor?

Close to the permanent magnet rotor
Outside the motor housing, on the shaft end
On the stator terminal block in the box
Next to the power supply for the drive

Show answer

Correct answer: Close to the permanent magnet rotor

It must be near enough to sense the magnet of the rotor.

Source: Lessons in Electric Circuits II: AC (Kuphaldt), 13.6: Brushless DC Motor

Questions last reviewed: 18 October 2026

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