Question

Which of the following statements is/are true for a DC motor?

1. (1) The function of the split rings is to reverse the flow of current.
2. (ii) Maximum force is experienced by arms of the coil aligned parallel to the magnetic field
3. (iii) Reversing current after every half rotation leads to continuous rotation of coil

• A. 1 only
• B. 3 only
• C. 1, 3
• D. All

Answer 1

Answer:

C. 1, 3

• The function of the split rings is to reverse the direction of current flow through the coil after every half rotation. This ensures continuous rotation .

• Maximum force is experienced when the coil is perpendicular to the magnetic field, not parallel.

• Therefore, statement (i) and (iii) are true