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प्रश्न
The real test of a magnet is ______.
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उत्तर
The real test of a magnet is repulsion.
Explanation:
An object cannot be considered a magnet just because it shows attraction, because even non-magnetic materials can be attracted. However, if an object repels another magnet, then and only then, it is a true magnet.
संबंधित प्रश्न
Select the correct alternative
A freely suspended magnet rests in
How will you do this?
Explain that a magnet has a certain magnetic field.
How will you do this?
Find the north pole of a magnet.
The alloys called ______ and ______ are used for making industrial magnets.
Fill the blank spaces in the table given below:
| Nature of bar | Action of compass needle | |
| North Pole | South Pole | |
| Non-magnetic | No action | ________ |
| ________ | attracted | attracted |
| North pole of a bar magnet | ________ | _________ |
| ________ | attracted | repelled |
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.
The figure shows a freely suspended magnet in the rest position. Copy the diagram and on its show:
- Angle of declination
- Angle in dip
Differentiate between:
Primary and secondary cell.
An object that is attracted by magnet.
