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Magnetic Effects of Electric Current
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30/07/2021 11:06 am
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What is an electromagnet? Describe the construction and working of an electromagnet with the help of a labelled diagram.
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30/07/2021 11:09 am
An electromagnet is a temporary magnet that works on the magnetic effect of current. It consists of a long coil of insulated copper wire wrapped around a soft iron core that is magnetised only when electric current is passed through the coil.
To make an electromagnet, we take a rod NS of soft iron and wind a coil C of insulated copper wire around it. When the two ends of the copper coil are connected to a battery, an electromagnet is formed.