When there are more coils added to the wire of an electromagnet what happens to
the magnetic field?

A)The magnetic field increases

B)The magnetic field decreases

C)The magnetic field varies

D)The magnetic field stays the same.

In technical terms, every coil of wire increases the "magnetic flux density" (strength) of your magnet.

So it's A (magnetic field increase)

true tan speed = ang vel x radius

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