In an electric motor, the direction of flow of current is reversed using:

Correct option is C

The correct answer is (C)   ​a split ring

• ​A split ring is a key component in a DC electric motor.
• It acts as a type of commutator that helps reverse the direction of current in the motor coil, ensuring continuous rotation.​
  

Information booster:

• The split ring is a circular ring made of a conducting material that is divided into two halves, each insulated from the other.
• Each half is connected to the ends of the motor coil.
• As the coil rotates, the split ring reverses the direction of the current flowing through the coil after every half-turn.
• This reversal ensures that the force on the coil remains in the same direction, enabling continuous rotation.
  

Importance:

• The split ring keeps the motor running smoothly by maintaining consistent rotational motion.
• It converts electrical energy into mechanical energy efficiently.

Split rings play a vital role in the operation of devices like electric fans, mixers, and other appliances powered by DC motors.