Physics for IGCSE & O level - Magnets And Currents (Section 10 - No. 8)
What is the role of slip rings in an a.c. generator?
To make the current flow backwards.
To keep the coil stationary.
To connect the coil to the external circuit.
To reverse the current direction every half-cycle.
Пояснення
Slip rings make the electrical connection to the external circuit to the coil.