Please Tell me thedifference between electromagnet and permanent magnet !!!!
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an electomagnet only magnetises when it's connected to a circuit whereas a permanent magnet works all the time.
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Here is your answer :
⇒ The permanent magnet does not have electric current flow through it.
⇒ Electromagnets are made by passing electric current through it.
⇒ The strength of the magnetic field in permanent magnets cannot be changed.
⇒ The strength of the electromagnets can be changed by changing the amount of current in the magnet.
⇒ The direction of the magnetic field cannot be changed.
⇒ The direction of magnetic field can be changed in electromagnets.
⇒ The polarity of permanent magnets cannot be changed.
⇒ The polarity of the electromagnets can be changed.
⇒ The permanent magnet is made of hard iron .
⇒ The electromagnet is made of soft iron .
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