Question

What is electromagnet? How can we determine north and south pole of an
electromagnet with the help of magnetized iron bar.​

Answer 1

Explanation:

When insulated copper wire is wrapped around a soft iron core and current is passed through it then this arrangement is called electromagnet. ... If electromagnet is attracted towards the bar magnet then that end is South pole and other is North. If it is repulsed then the end is North pole and other is South pole

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Answer 2

Answer:

An electromagnet is a solenoid coil that attains magnetism due to a flow of current. It works on the principle of magnetic effect of current.

(i) By suspending magnetised bar and identify its north and south poles.

(ii) By finding the polarity of electromagnet using the property -like poles repel.