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प्रश्न
Draw diagrams of the artificial magnets of four different shapes?
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उत्तर
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संबंधित प्रश्न
Write true or false of the following statement.
Copper cannot be magnetised.
Match the following
| Column A | Column B |
| A) Steel | 1) to store magnets |
| B) Soft iron | 2) temporary magnet |
| C) Use in electric bell | 3) permanent magnet |
| D) Magnetic keepers | 4) electromagnet |
Tick the most appropriate answer.
The surest test of magnetism is
Define the following term regarding a bar magnet:
Effective length
Write the answer in your word.
What are the practical uses of a magnet?
If a magnet is carefully broken into two pieces as shown in figure (i), how does the magnetic strength of each piece compare with that of the original magnet? If another magnet is carefully broken in half along its long axis shown in figure (ii), how would the strength of each piece compare with that of the original magnet?
Draw the magnetic flux pattern near a bar magnet placed with its axis in the magnetic meridian and the south pole pointing towards geographic north.
With the help of a diagram explain the following:
Magnetisation of steel needle using electric current such that the pointed end should have north polarity.
Which is not attracted by a magnet?
