Physics for IGCSE & O level - Magnets And Currents (Section 8 - No. 46)
What is the function of a commutator in an electric motor?
To reverse the current's direction.
To increase the current.
To decrease the motor's speed.
To provide electricity to the coil.
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The commutator reverses the current direction in the coil every half-cycle to keep the motor spinning.