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प्रश्न
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उत्तर
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संबंधित प्रश्न
Fill in the following blank with suitable words:
Magnetic field lines leave the .......... pole of a bar magnet and enter at its .......... pole.
A strong bar magnet is placed vertically above a horizontal wooden board. The magnetic lines of force will be:
(a) only in horizontal plane around the magnet
(b) only in vertical plane around the magnet
(c) in horizontal as well as in vertical planes around the magnet
(d) in all the planes around the magnet
What is a lodestone?
Explain the following :
The north end of a freely suspended magnetic needle gets attracted towards a piece of soft iron placed a little distance away from the needle.
State four properties of magnetic field lines.
How do you account for the following fact?
Soft iron keepers help to prevent the magnets from losing their magnetic properties.
Draw diagram showing the arrangement of the lines of force for a single magnet.
Complete the following diagram of magnets to show the lines of force.
Define magnetic field lines of force.
