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Question 66Asked in RRB JE CBT-1, 16 Dec 2024, Shift 1 (9:00 AM)

The commutator in an electric motor is used to:

  1. Achange the direction of the magnetic field
  2. Bmaintain the magnetic field in the circuit
  3. Cmaintain the potential difference in the circuit
  4. Dreverse the direction of current flowing through the coil
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Correct answer: (D) reverse the direction of current flowing through the coil

From RRB JE CBT-1 PYQ 16 Dec 2024, Shift 1 (9:00 AM)

This is question 66 of RRB JE CBT-1 PYQ 16 Dec 2024, Shift 1 (9:00 AM). See all questions of this paper with answers, or attempt the paper as a timed online test to get your score and all-India rank.