WAEC Physics 2013 Objective — Question 40

Question 40 of 50 from the West African Examinations Council (WAEC) Physics 2013 Objective paper, with the correct answer and a full explanation.

The direction of motion of a current-carrying conductor placed within the opposite poles of a magnet is determined using

A. Fleming's left-hand ruleCorrect
B. Fleming's right-hand rule
C. Maxwell's corkscrew rule
D. Ampere's rule

Explanation

Fleming's left-hand rule: if the thumb, forefinger and middle finger of the left hand are held mutually at right angles, with the forefinger pointing in the direction of the magnetic field and the middle finger in the direction of current, the thumb points in the direction of motion (force).

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