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The rotor in a DC motor rotates because the magnetic field in either the rotor or the stator is constantly changing. If it is a brush type DC motor, then the rotor field changes as the rotor moves to a new position on the commutator. If it is a brush-less type DC motor, then there is some circuitry associated with the stator that changes the stator field.
Wiki User
∙ 13y ago
Wiki User
∙ 12y agoIf you check from the opposite side, you'll probably find it's running clockwise!
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What is a DC generator the same as?
A DC generator, or "dynamo", is very similar to a DC electric motor but cannot be described as "exactly the same as a motor" because a DC generator's designed purpose is not to "use" electricity (which a DC motor does) but to "make", or "produce", electricity.
Why is a motor is a reverse function of generator?
from Faraday's laws its clear that when ever there is change in flux, an emf is produced. in a dc motor there are permanent magnets that produce a magnetic flux. If the shaft of the motor is rotated, which in tern rotates the coil that is placed in the magnetic field. Thus, changing the flux that cuts the coil. since there is change in flux an emf is induced.thus, a dc motor can be used as a generator.
What is the different between ac dc motors?
DC Motor works on DC source and AC motor works on AC source
Fan works on ac or DC?
It depends on the motor. The fan is driven by an electric motor, and it can use a dc motor (as in a car) or an ac motor (as in a house). They are not interchangeable.
What generates more noise ac motor or dc motor?
dc motors generate more noise.
What is stater and rotar?
A stator is the stationary part of an electric motor. The stator contains the windings in which the electrical source is connected to. The rotar is the core and shaft that rotates when electricity is applied to the stator
Define the brush on a dc motor?
The brush is actually a piece of carbon placed on the rotating commutator of the motor. it will be in pairs. Since the armature shaft rotates but gets the continuity through these brushes.
A palindrome for a part of a motor that turns or rotates?
A palindrome for a part of a motor that turns or rotates is a rotor.
What is a DC generator the same as?
A DC generator, or "dynamo", is very similar to a DC electric motor but cannot be described as "exactly the same as a motor" because a DC generator's designed purpose is not to "use" electricity (which a DC motor does) but to "make", or "produce", electricity.
What rotates on an electric motor?
The part that rotates inside of an electric motor is called the rotor.
What is the principle of electrical fan?
electric fan works on the principle of electromagnetic induction.there are two parts of this one is stator and other is rotar.induction machine are ac machines.stator is given single phase ac voltage which produces sinuosoidal flux and emf is induced in the rotar and acc to lenz law current flows in a direction so as to oppose the cause that has produced effect in this case it rotates in similar direction as that of sinuosoidal field..and rotar rotates so blades attached to it also rotates and we get cool air
What is a DC shunt motor?
A DC shunt motor is a motor using DC supply with the the inductor connected parallel to the armature.
What does a armature or rotor do?
The Armature(or rotor) is a electromagnet inside a motor and alters the magnetic field inside the motor when it rotates. In DC motors it is connected to a Commutator. In AC induction motors the armature isn't connected to a power source.
What are uses of bidirectional dc motor?
6V dc motor
Why is a motor is a reverse function of generator?
from Faraday's laws its clear that when ever there is change in flux, an emf is produced. in a dc motor there are permanent magnets that produce a magnetic flux. If the shaft of the motor is rotated, which in tern rotates the coil that is placed in the magnetic field. Thus, changing the flux that cuts the coil. since there is change in flux an emf is induced.thus, a dc motor can be used as a generator.
What is dc motor with synchoronous operation?
A synchronous motor is an ac motor that does not run on dc.
When was Igor Rotar born?
Igor Rotar was born in 1965.
