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प्रश्न
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उत्तर
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संबंधित प्रश्न
A thick wire is hanging form a wooden table. An anticlockwise magnetic field is to be produced around the wire by passing current through this wire by using a battery. Which terminal of the battery should be connected to the:
(a) top end of wire?
(b) bottom end of wire?
Give reason for your choice.
What is a natural magnet? State two limitations of a natural magnet.
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.
Insert two magnetic field lines on either side of the magnet using arrow head to show the direction of each field line.
The intensity of a magnetic field is indicated by the lines of ______.
Which substances are used for making electromagnets?
Select the correct option:
Nickel is a:
State briefly the molecular theory of magnetism.
Draw diagram showing the arrangement of the lines of force for a single magnet.
Draw diagram showing the arrangement of the lines of force for two magnets in line, with unlike poles facing one another.
A charge moving in a magnetic field, in a direction other than the direction of the magnetic field, experiences a force. It is called the ______ force.
