Slip rings maintain constant contact with the same sides of the coil As one side of the coil moves up through the magnetic field, a potential difference is induced (created) in one direction. As ...

In a dynamo, a split ring commutator changes the coil connections every half turn. As the induced potential difference is about to change direction, the connections are reversed. This means that ...

CBSE Class 10 Physics Magnetic Effects of Electric Current Important Questions ... The essential difference between an AC generator and a DC generator is that (a) AC generator has an electromagnet ...