In an electric motor, which of the following remains fixed and which rotates with the coil? commulator,brush.
Answers
Explanation:
brush remain fixed
commulator rotate with coil
In an electric motor, Brush remains fixed and Commutator rotates with the coil
Explanation:
Coil:
A field coil is an electromagnet that is used to generate a magnetic field in an electromagnetic machine, usually a rotating electrical machine, such as a motor or generator. It consists of a coil of wire through which a current flows.
Commutator:
A commutator is a rotary electrical switch in certain types of electric motors and electrical generators that periodically reverses the current direction between the rotor and the external circuit. It consists of a cylinder composed of multiple metal contact segments on the rotating armature of the machine.
Brush:
Carbon brush, also known as a motor brush, is the small part of the motor that conducts electrical current between the stationary wires (stator) and the rotating wires (rotor) of a motor or generator. The brush is typically made up of one or more carbon blocks and can come with one or more shunts or terminals. They are fixed to the stator, and they connect to copper plates fixed to the rotor. As the rotator rotates, the brushes supply current in the right direction.
From definitions it is clear that the commutator rotates with respect to the coil whereas the brush remains fixed.
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