Electric Generator

Q.

How do you clean the electrical slip rings of your generator?

Q.

Is Copper Loss Affected By Power Factor?

Q. The electric generator is an emf device.

1. True
2. False

Q. The phase difference between the flux linkage and the induced e.m.f. in a rotating coil in a uniform magnetic field

1. $\Pi$
2. $\frac{\Pi }{2}$
3. $\frac{\Pi }{4}$
4. $\frac{\Pi }{6}$