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You have been provided with a solenoid AB. (i) What is the polarity at end A?

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 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. 

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(i) North pole. 

(ii) Electromagnet is a very strong magnet as compared to a permanent magnet.

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