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प्रश्न
Explain the following :
Several soft iron pins can cling, one below the other, from the pole of a magnet.
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उत्तर
Several soft iron pins can cling one below the other from the pole of a magnet because the magnet induces magnetism in an iron nail which gets attracted by the magnet and clings to it. This magnetized nail magnetizes the other nail near it by magnetic induction and attracts it. This process continues until force of attraction on first nail is sufficient to balance the total weight of all nails in chain.
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संबंधित प्रश्न
Fill in the following blank with suitable words:
The earth's magnetic field is rather like that of a .......... magnet with its .......... pole in the northern hemisphere.
Can two magnetic field lines intersect each other? Give reason to your answer.
Figure. shows a bar magnet placed on the table top with its north pole pointing towards south. The arrow shows the north-south direction. There are no other magnets or magnetic materials nearby.
What is the magnitude of the magnetic field at each neutral point? Give a reason for your answer.
Answer the following question.
Draw the pattern of magnetic field lines of
(i) a current-carrying solenoid and
(ii) a bar magnet.
List two distinguishing features between the two fields.
Write a note on the 'magnetic field'.
Define the Isogonic line.
Define the agonic line.
Write the properties of magnetic lines of force.
Define magnetic field lines of force.
