Answer:B.As the north pole of the electromagnet nears the south pole of the permanent magnet, the current reverses and the poles of the magnets then repel.
Explanation:
Answer:
Explanation:
I think that you to run more than 12 miles
Answer:
The second is correct.
Explanation:
Try with a magnet and experiment. You'll find out
The answer & explanation for this question is given in the attachment below.