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Question
What is an electromagnet? Describe the construction and working of an electromagnet with the help of a labelled diagram.
Solution
Electromagnet:
It is a magnet that works on the principle of magnetic effect of current.
A temporary magnet consisting of a long coil of insulated copper wire wrapped around a soft iron core is called an electromagnet.
Construction and working:
We take a rod NS of soft iron and wind coil C of insulated copper wire around it. When we connect the two ends of the copper coil to a battery, an electromagnet is formed. The iron rod inside the coil becomes a strong electromagnet on passing a current. The magnetic field produced by an electromagnet is very strong.
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