Physics, asked by princessdoll07, 1 year ago

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Difference between bar magnet and Electromagnet? in 5 points
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Answers

Answered by MANICKS625
1

An electromagnet is a kind of magnet whose magnetic field is created by the flow of electric current. The magnetic field disappears when the current stops. Electromagnets offer the advantages of controlled holding power and on command release. Through the application of controlled DC electrical current, electromagnets have the ability to attract and hold ferrous materials with varying degrees of force, and to release the item as required.


MANICKS625: i hope this may help u
princessdoll07: only electromagnet u gave the answer full answer not u given....??
MANICKS625: magnet is a material or object that produces a magnetic field. This magnetic field is invisible but is responsible for the most notable property of a magnet: a force that pulls on other ferromagnetic materials, such as iron, and attracts or repels other magnets
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Answered by sadikalisait
0

In an electromagnet the magnetic field is created through electric current in a wire-wound coil and strengthened by a soft-iron core. As soon as you turn off the power, the soft-iron core loses its magnetisation.

A permanent magnet is made of ferromagnetic material, which is magnetised by a strong external magnetic field. The magnetically hard material that is used keeps part of its magnetisation after the external magnetic field is turned off.

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