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प्रश्न
Four identical iron bars were dipped in a heap of iron filings one by one. Figure shows the amount of iron filings sticking to each of them.
- Which of the iron bar is likely to be the strongest magnet?
- Which of the iron bars is not a magnet? Justify your answer.
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उत्तर
- Among the four given magnets, the iron bar marked with (a) is the strongest magnet since many filings are attached to it.
- The iron bar that has no filings attached to it is not a magnet. Such a piece is an iron bar (b).
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संबंधित प्रश्न
Take a glass of water with a few pins inside. How will you take out the pins without dipping your hands into water?
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Write a note on:
Magstripe:
The arrangement to store two magnets is shown by figures (a), (b), (c) and (d) in the following figure. Which one of them is the correct arrangement?
Four identical iron bars were dipped in a heap of iron filings one by one. Fig. 13.5 shows the amount of iron filings sticking to each of them.
Which of the iron bars is not a magnet? Justify your answer.
Boojho kept a magnet close to an ordinary iron bar. He observed that the iron bar attracts a pin as shown in the following figure.
What inference could he draw from this observation? Explain.
Suggest an arrangement to store a U shaped magnet. How is this different from storing a pair of bar magnets?
