Physics for IGCSE & O level - Magnets And Currents (Section 1 - No. 38)
What is the function of a commutator in a DC motor?
To provide AC power.
To reverse the current direction every half cycle.
To provide more power to the coil.
To increase the magnetic field strength.
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The commutator reverses the current direction in the coil of a DC motor every half cycle, ensuring continuous rotation.