Question

Juan makes an adjustment to an electromagnet that causes the electromagnet to lose some of its strength. What did Juan most likely do?

Answer 1

As strength of an electromagnet depends upon the following factors such as:-

●No. Of Turns in coil-It is directly proportional to it.

●Current flowing in Coil-It is directly proportional to it.

●Length Of the air gap between its poles-It is Inversely proportional to it.

So Acc. To the statement,Juan might have reduced The no. Of turns in the coil which has resulted in low strength of electromagnet. The another reason might be that He might have reduced the current flowing in the coil and increased the length of air gap between it poles..

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Answer 2

Answer:

A. He reduced the number of loops in the wire.

Explanation:

When you increase the number of loops in a wire, the stronger the electromagnetic field becomes. When you decrease the number of loops in a wire, the weaker the electromagnetic field becomes.