The direction of the current in a coil of a motor is reversed by:

Correct option is A

Correct Answer is (A)Split ring.

Split ring

·        Even though it is comprised of a straightforward circular as well as a cylindrical shell that is divided axially with the sections isolated from one another, the split ring in an electric motor is in fact referred to as a commutator.

·        The split ring is being used to change the direction that the current travels through the coil.

·        In order for the coil to continue rotating in nearly the same or equivalent directions indefinitely, the current inside must always be reversed.

·        After each and every half-circle, the direction of such a pair turning the coil remains constant, and the coil continues to follow the same pattern.

Incorrect options explanation:

Slip ring:

• The slip ring is a component of an AC motor that is used to transfer energy between the machine's stationary and rotating parts. The material that is used to make brushes is graphite. It sits on the slip ring's outer surface. Through the brush, the current reaches the slip ring. The slip ring and the motor's coil are connected to transfer energy. It comes in a variety of sizes. The slip ring is also known as the collector ring, the rotary electrical ring, and other names.

Brushes: ​

• An electric motor's carbon brush is an electrical contact that moves current between the motor's moving and stationary parts. These motor parts are stowed away in holders above the slip ring or rotation commutator. Carbon Brushes are utilized in electric motors and generators, among other applications.

Axle:

• ​In industries, we perform numerous mechanical operations using an electric motor's axle. To transfer power to other equipment's rotating parts, we attach pulleys and gearboxes to a motor's shaft. The axles basically connect your engine's power and torque to your wheels.