Which of the following statement about the elec... - JAMB Physics 2019 Question
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 option: b
A - B = S - N
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