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Which of the following statement about the electromagnet shown above is correct?


Question

Which of the following statement about the electromagnet shown above is correct?

Options

A) when the current flows from A to B, the end A will be in north pole

B) when the current flows from A to B, the end A will be south pole

C) when the current flows from A to B, the end B will be north pole

D) none of the above

The correct answer is B.

Explanation:

A - B = S - N.
Also, starting end of the current is south while terminating end is North.


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