Question

You have been provided with a solenoid AB.
(i) What is the polarity at end A ?
(ii) Give one advantage of an electromagnet over a permanent magnet

I need Proper Solution not any kind of screenshot​

Answer 1

Answer:

(ii) give one advantage of an electromagnet over a permanent magnet. this answers

Answer 2

Explanation:

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(i) North pole.

(ii) The magnetic field strength can be change in electromagnet. But not in permanent magnet