JAMB Physics 2015 Objective — Question 2

Question 2 of 50 from the Joint Admissions and Matriculation Board (JAMB) Physics 2015 Objective paper, with the correct answer and a full explanation.

In the diagram, a coil rotates between the poles of a magnet (S above, N below), with M as the input lead and P as the output lead. The direction of the magnetic field between N and S is

A. NSCorrect
B. SN
C. MP
D. PM

Explanation

Magnetic field lines run from the north pole to the south pole, i.e. in the direction N to S.

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