what is electromagnet how can we determine North and South Pole of an Electromagnet with the help of magnetised iron bar
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an electromagnet is a coil wrapped around a soft iron core,by close turns,which is only magnetised when current is passed through it.
You can determine the polarity,by bringing a bar magnet near its end ,if it repels
You can determine the polarity,by bringing a bar magnet near its end ,if it repels
dhruvjha2001:
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Answered by
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Electromagnet - It is a temporary magnet,so can be easily demagnetised.
It's strength can be varied.
It's polarity can be reversed.
Generally it is a strong magnet.
HOPE THIS WILL BE HELPFUL FOR YOU.....
:)
It's strength can be varied.
It's polarity can be reversed.
Generally it is a strong magnet.
HOPE THIS WILL BE HELPFUL FOR YOU.....
:)
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