Look at the diagram and answer the following question.
Which of the iron bars is not a magnet? Justify.

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Solution

When a magnet is brought near the iron nails, the iron nails get attracted to it due to its magnetism.
Iron nails get clustered at the poles of the magnet where the magnetism is maximum because of the closely spaced magnetic field lines.
Diagram (a) simply depicts the attraction of iron nails by the magnet.
In diagram (b), we can clearly observe that there are no iron nails attracted by the bar which indicates that it is not a magnet.
Hence, the bar shown in diagram (b) is not a magnet.

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Look at the diagram and answer the following question.Which of the iron bars is not a magnet? Justify.

Look at the diagram and answer the following question.
Which of the iron bars is not a magnet? Justify.