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O-LevelPhysicsMagnetism5054/11 · Oct/Nov 2010 · Q331 Mark

What does not alter the size of the turning effect on the coil of an electric motor?

Athe direction of the current in the coil

Bthe number of turns in the coil

Cthe size of the current in the coil

Dthe strength of the magnetic field

✓ Correct answer

A: the direction of the current in the coil

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About this question

Topic: Magnetism, O-Level Physics (syllabus 5054). Multiple choice, 1 mark.
Source: O-Level Physics, Oct/Nov 2010 Paper 1 Variant 1, question 33.

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