Author Question: If the number of turns in a rectangular coil of wire that is rotating in a magnetic field is ... (Read 86 times)

littleanan · **on:** Jul 29, 2018

If the number of turns in a rectangular coil of wire that is rotating in a magnetic field is doubled, what happens to the induced emf, assuming all the other variables remain the same?

A) It stays the same.
B) It is reduced by a factor of 4.
C) It is reduced by a factor of 2.
D) It is doubled.
E) It is quadrupled.

Question 2

Coherent sources of light have a varying phase difference.

Indicate whether the statement is true or false