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

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

Correct Answer: Option B

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

Explanation

A – B = S – N.

Also, starting end of the current is south while terminating end is North.