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प्रश्न
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उत्तर
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संबंधित प्रश्न
Write true or false for a given statement.
A current-carrying coil, when suspended freely, can rest in any direction.
“Poles exist in pair”. Comment on this statement ?
State if the following statement is true or false. Correct the statement if it is false.
Attraction is the surest test for magnetism.
How will you do this?
Explain that a magnet has a certain magnetic field.
If a magnet attracts a piece of metal, that piece must be made of ______.
With whom should I pair up?
| Group 'A' | Group 'B' |
| (a) Compass | 1. The highest magnetic force |
| (b) The door of a cupboard | 2. Like poles |
| (c) Repulsion | 3. A magnet |
| (d) Magnetic pole | 4. A magnetic needle |
Bar magnets are often stored in pairs as shown in the figure. E and F being pieces of metal.
Why are E and F placed in contact with the poles of the magnets as shown in the diagram?
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?
Define the following term:
Geographic meridian
What will happen when we place magnets near cell phones, computers, and DVDs?
