ELECTRIC MOTORS AND ELECTROMAGNETIC INDUCTION

1 mark · Easy

State Fleming’s left hand rule for the direction of force on a current-carrying wire in a magnetic field.

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Thumb = motion, first finger = field (N to S), second finger = current.

Also accept: Thumb points in direction of force, first finger in direction of field (N to S), second finger in direction of current

Common mistakes: Right hand rule; Wrong finger assignments

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Marking points

B1 · 1 mark · Correct assignment of thumb, first finger, second finger (force, field, current).

Worked solution

Fleming’s left-hand rule: thumb = force (motion), first finger = magnetic field (N to S), second finger = current (positive to negative).