A three-phase synchronous motor will have
A. no slip-rings
B. one slip-ring
C. two slip-rings
D. three slip-rings
Answer:C
A three-phase synchronous motor will have
A. no slip-rings B. one slip-ring C. two slip-rings D. three slip-rings
Explanation: A three-phase synchronous motor basically consists of a stator core with a three-phase winding (similar to an induction motor), a revolving DC field with an auxiliary or armature winding and two slip rings, brushes, and brush holders, and two end shields housing the bearings that support the rotor shaft.