A freshly demagnetized bar magnet is placed in the East-West direction to ensure that

Assessment: WAEC SSCE - Physics - 2019 (Objective) Subject: Physics

Question 1 Report

A freshly demagnetized bar magnet is placed in the East-West direction to ensure that

Answer Details
Placing a freshly demagnetized bar magnet in the East-West direction helps ensure that the molecular magnets within the magnet remain randomly arranged. This is because, in this position, the magnet is perpendicular to the Earth's magnetic field, which would otherwise affect the alignment of the molecular magnets. By keeping the molecular magnets in a random arrangement, the magnet can be effectively demagnetized and can be magnetized again in a desired direction.
Read lesson note on Magnets And Magnetic Fields (JAMB)
Read lesson note on Gravitational Field (WAEC)
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