A student uses two compass needles to investigate the magnetic field around a bar magnet....

WAEC 2018

A student uses two compass needles to investigate the magnetic field around a bar magnet. Which of the following diagrams show the correct directions of the needles?

A. A
B. B
C. C
D. D

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Correct Answer: Option B

Explanation

By convention, the field direction is taken to be outward from the North pole and in to the South pole of the magnet. Also, they form closed lines.

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A student uses two compass needles to investigate the magnetic field around a bar magnet....

Correct Answer: Option B

Explanation

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