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प्रश्न
What is an artificial magnet? State two reasons why do we need artificial magnets .
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उत्तर
An artificial magnet is a magnetized piece of iron (or other magnetic material). Artificial magnets are required because natural magnets have odd and irregular shape and they are not magnetically very strong. Artificial magnets can be given desired shape and made very strong.
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संबंधित प्रश्न
Explain why, a freely suspended magnet always points in the north-south direction.
The shape of the earth's magnetic field resembles that of an imaginary:
(a) U-shaped magnet
(b) Straight conductor carrying current
(c) Current-carrying circular coil
(d) Bar magnet
The strength of the magnetic field between the poles of an electromagnet would be unchanged if:
In following figure, draw at least two magnetic field lines between the two magnets.
(a) 
Draw diagram showing the arrangement of the lines of force for two magnets in line, with unlike poles facing one another.
State any two properties of a magnet.
Inside the magnet, the field lines moves ____________.
A wire 10 cm long carrying a current of 1.5 A is held in a uniform magneÑic field in which B = 10-3 T. Calculate the force on the wire if it is held perpendicular to the lines of the magnetic field.
