Which of the following statemetns are NOT the functions of the commutator in a D . C Motor ?
a) To reverse the direction of the flow of current in the coil at every half rotation.
b) To reverse the voltage in the coil at every half rotation.
c) to enable the coil to be in electrical contact with the carbon brushes.

Options

A. Only a and b
B. Only b and c
C. Only c and a
D. a,b and c