Which best compares a brush and a commutator in an electric motor? A- Both rotate when the motor is on. B- Both carry electrical current from a power source. C- Both remain stationary when the motor i

Which best compares a brush and a commutator in an electric motor?

A- Both rotate when the motor is on.

B- Both carry electrical current from a power source.

C- Both remain stationary when the motor is on.

D- Both have a permanent magnetic field.