O-LevelPhysicsMagnetism5054/11 · May/June 2019 · Q281 Mark

A student investigates a permanent magnet by suspending paper clips from the magnet as shown. Which statement is correct?

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AEach paper clip has a S-pole at the top and a N-pole at the bottom when suspended from the permanent magnet.

BIf the paper clips are made of soft iron they become demagnetised when the permanent magnet is removed.

CIf the paper clips are made of steel they become demagnetised when the permanent magnet is removed.

DMore paper clips can be suspended from the N-pole.

✓ Correct answer

B: If the paper clips are made of soft iron they become demagnetised when the permanent magnet is removed.

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