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संबंधित प्रश्न
“Poles exist in pair”. Comment on this statement ?
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 |
Draw diagrams of the artificial magnets of four different shapes?
How are the magnets kept safely? What is the role of keepers in storing the magnets?
Fill in the blank.
The perpendicular bisector of the line joining the two poles of a magnet is called ...................
Write the answer in your word.
What are the practical uses of a magnet?
Bar magnets are often stored in pairs as shown in the figure. E and F being pieces of metal.
Name the metal used for E and F.
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.
Observe the pictures A and B given in Fig. 13.1 carefully.
Which of the following statement is correct for the above given pictures?
