Question

how we make large amount of magnatic force ???​

Answer 1

Answer:

Actually magnetic force cannot be made large, but only it's strength can be increased. Because permanent magnets have fixed strength and magnetic field whereas an electromagnet's strength can be eventually increased.

We know that, in a solenoid,

Number of turns of wire is directly proportional to the magnetic strength.

And, current is directly proportional to the magnetic strength.

In order to increase the strength of a magnet, we can have a electromagnet with high current and very large number of turns of insulated copper wire.

Answer 2

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