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प्रश्न
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उत्तर
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संबंधित प्रश्न
Draw a diagram to show the magnetic field lines around a bar magnet.
Define magnetic field lines. Describe an activity to draw a magnetic field line outside a bar magnet from one pole to another pole.
In the straight wire A, current is flowing in the vertically downwards direction whereas in wire B the current is flowing in the vertically upward direction. What is the direction of magnetic field:
(a) in wire A?
(b) in wire B?
Name the rule which you have used to get the answer.
What is a natural magnet? State two limitations of a natural magnet.
What do you understand by the term magnetic field lines?
Which substances are used for making electromagnets?
A dry cell can supply a charge of 800 C. If continuous current of 8.0 mA is drawn, calculate the time in which cells will discharge completely.
The magnetic field lines always begin from ____________.
A magnetic needle is kept in a non-uniform magnetic field. It experiences ______.
When the conductor is perpendicular to the magnetic field, the force will be the ______, When it is parallel to the magnetic field, the force will be ______.
