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Difference between bar magnet and a …

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Difference between bar magnet and a solenoid?

Posted by Dhanistha Joshi 7 years, 11 months ago

CBSE > Class 10 > Science

1 answers

Sia ? 4 years, 6 months ago

The bar magnet is a permanent magnet whereas a solenoid is an electromagnet ie, it acts as a magnet only when an electric current is passed through.
When a bar magnet is cut into two halves, both the pieces act as a magnet with the same magnetic properties whereas when a solenoid is cut into two halves, they will have weaker fields.
The poles of the bar magnet are fixed whereas for a solenoid the poles can be altered.
The strength of the magnetic field of a bar magnet is fixed ie, unaltered whereas the strength of the magnetic field of a solenoid depends on the electric current that is passed through it.

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