The commutator
assures that the current from the generator always flows in one direction
. … On DC and most AC motors the purpose of the commutator is to insure that the current flowing through the rotor windings is always in the same direction, and the proper coil on the rotor is energized in respect to the field coils.
What is commutator explain its function?
The function of commutator ring in an electric motor is
to reverse the direction of current flowing through the coil every time coil just passes the vertical position during a revolution
. Hence as the direction of the current is reversed, the torque is changed in the direction.
What is the role of commutator in electric motor Class 10?
Answer: The function of commutator or slip ring is
to change the direction of current through the coil after every half rotation
.
What is commutation in motor?
Commutation is
the process of switching the field in the armature windings to produce constant torque in one direction
, and the commutator is a device connected to the armature, which enables this switching of current. The lever arm for the torque produced on the armature varies with the angle of the coil (cos α).
What is the role of commutator and carbon brushes in an electric motor?
Split commutators are rings that allow Direct current to move in the opposite direction to maintain a full rotation.
Carbon Brushes are used to conduct the electricity
. They are attached to the commutators, and the commutators are attached to the wire loop.
What is the role of brushes in electric motor?
IN ELECTRIC MOTOR the function of brushes is
to make contact with the rotating rings and through them to supply current to the coil
. function of commutator in an electric motor is to reverse the direction of current through the coil periodically.
What is work of motor?
An electric motor is an
electrical machine that converts electrical energy into mechanical energy
. Most electric motors operate through the interaction between the motor’s magnetic field and electric current in a wire winding to generate force in the form of torque applied on the motor’s shaft.
What is the difference between armature and commutator?
| Armature Commutator | It receives current from the armature windings It receives current from the armature core | The core consists of armature windings, commutator, and brushes It has some segments |
|---|
What is the function of brush?
It is
used for cleaning, grooming hair, make up, painting, surface finishing and for many other purposes
. It is one of the most basic and versatile tools in use today, and the average household may contain several dozen varieties.
Can commutator convert AC to DC?
Commutator
converts the Alternating to direct current in
a DC generator. The alternating current generated in the armature windings of the generator gets converted to direct current after it passes through the commutator and the brushes.
What is commutation process?
Commutation in DC machines is the
process by which the reversal of current takes place
. In DC generator this process is used to convert the induced AC in the conductors to a DC output. In DC motors commutation is used to reverse the directions of DC current before being applied to the coils of the motor.
What are the types of commutation?
Three types of commutation are identified: i) Voltage commutation, ii) Current commutation and iii) Load commutation.
What is the principle of electric motor?
The electric motor works on the
principle of magnetic effects of current
. Its principle is when a rectangular coil is placed in a magnetic field and current is passed through it, the coil rotates as a result of the forces acting on the coil.
What energy does an electric motor use?
Electric motor, any of a class of devices that convert
electrical energy to mechanical energy
, usually by employing electromagnetic phenomena. Most electric motors develop their mechanical torque by the interaction of conductors carrying current in a direction at right angles to a magnetic field.
What’s the difference between AC and DC motors?
The most obvious difference is the
type of current each motor turns into energy
, alternating current in the case of AC motors, and direct current in the case of DC motors. AC motors are known for their increased power output and efficiency, while DC motors are prized for their speed control and output range.
