If some turns of Wire are removed from an electromagnet, the magnetic field Will ________.
A)be more than the original electromagnet
B)be the same as the original electromagnet
C)be less than the original electromagnet

Question

Quizplus · Accepted Answer

The strength of the magnetic field in an electromagnet is directly proportional to the number of turns of wire around the core. If some turns of wire are removed, the number of turns decreases, resulting in a weaker magnetic field. Therefore, the magnetic field will be less than the original electromagnet.

If Some Turns of Wire Are Removed from an Electromagnet