CUET and UG exam CUET UG 2025 Mock Test Series Physics Electromagnetic Induction and Inductance AC Generator
Which of the following are NOT the function of the commutator in a D.C. motor?
(i) To reverse the direction of the flow of current in the coil at every half rotation
(ii) To reverse the voltage in the coil at every half rotation
(iii) To enable the coil to be in electrical contact with the carbon brushes
1
Only (i) and (ii)
2
Only (ii) and (iii)
3
Only (i) and (iii)
4
(i), (ii)and (ii)