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If you were to mechanically rotate the armature in an electric motor what would happen?
You said "armature" so it is a dc motor. Hence if the field is permanent magnet type then a voltage appears at the armature terminals nd its magnitude depends on the speed nd magnetic field strength. If it's field coils, then they must be seperately excited (if it don't possess residual). By changing the field strength you can vary the voltage produced at armature terminals.
What else can I help you with?
Does armature rotates?
Typically the armature windings are in the stator of a generator, which does not rotate. Typically the field windings are on the rotor, which rotates.
What makes the armature in the electric motor rotate?
from Faraday's law of electromagnetic induction : when a current carrying conductor cuts the magnetic field an E.M.F (electro motive force) is produced and it sets up in such a direction so as to oppose the cause of it. the stator winding of a motor which produces the R.M.F (rotating magnetic field) serves as the magnetic field and the armature winding is the current carrying conductor which cuts the magnetic field , thus an EMF is induced in the armature which again produces a force to oppose the emf produced in the armature winding.
What happen applying dc supply to ac induction motor?
It depends on whether the field winding of the dc motor is connected in series or in shunt with the armature winding.If it is connected in series,the motor will rotate since the torque,which varies as the product of the armature and field current is always positive.Thus,a positive average torque causes the motor to rotate,however the pulsating nature may cause the commutator segments and brushes to wear out. Thus only small sized dc motors may be used with ac supply.
Why is stationary armature preffered you commercial generators than moving armature?
Stationary armature is preferred in commercial generators over moving armature because it allows for a more compact and efficient design. With a stationary armature, the magnetic field is stationary, which reduces wear and tear on the moving parts and increases the overall reliability of the generator. Additionally, a stationary armature design simplifies the electrical connections and maintenance of the generator, making it easier to operate and service in commercial applications.
How can you rotate the dc series motor in both direction?
in any dc machine changing the polarity of the field will change its direction. here, in series motor, the field is in series with the armature, to which we feed the supply. hence, change the feeding polarity.
Does armature rotates?
Typically the armature windings are in the stator of a generator, which does not rotate. Typically the field windings are on the rotor, which rotates.
What is the function of slip rings in ac generator?
They rotate the armature coil.
Why is generator armature harder to rotate when it is connected to a circuit and supplying electric current?
Because a generator extracts energy from whatever is rotating it and passes this (by the electric current it produces) down the circuit to the motor (or light bulb or heater) where it is used. When there is no complete electric circuit, no electricity can flow so no (little) energy is extracted, but when the circuit is closed, electricity does flow and the armature is more difficult to turn.
How do you adjust magneto on 6.5 hp Briggs engine?
The armature needs to be slightly loose with the magnets away from it, insert a business card or index card between flywheel and legs of the armature, slowly rotate the flywheel until magnets pull the legs close, tighten armature rotate flywheel until magnets are away, remove card and you are done.
What makes the armature in the electric motor rotate?
from Faraday's law of electromagnetic induction : when a current carrying conductor cuts the magnetic field an E.M.F (electro motive force) is produced and it sets up in such a direction so as to oppose the cause of it. the stator winding of a motor which produces the R.M.F (rotating magnetic field) serves as the magnetic field and the armature winding is the current carrying conductor which cuts the magnetic field , thus an EMF is induced in the armature which again produces a force to oppose the emf produced in the armature winding.
What is the purpose of field coil in a electric motor?
The field coil in an electric motor creates a magnetic field when electricity flows through it. This magnetic field interacts with the armature, causing it to rotate and generate mechanical motion. The field coil determines the strength and direction of the magnetic field, influencing the motor's efficiency and performance.
What is the purpose of an armature?
An armature is a component in an electric motor that interacts with the magnetic field to produce motion. It consists of windings where electrical current flows, creating a magnetic field that interacts with the field from the stator to generate torque and rotate the motor.
What component is made of loops of wire that rotate in the magnetic field provided by the field poles and field coils?
An armature is the component that is made of loops of wire that rotate in the magnetic field provided by the field poles and field coils. This rotation induces an electromotive force and generates electrical energy in devices such as generators and alternators.
What happen applying dc supply to ac induction motor?
It depends on whether the field winding of the dc motor is connected in series or in shunt with the armature winding.If it is connected in series,the motor will rotate since the torque,which varies as the product of the armature and field current is always positive.Thus,a positive average torque causes the motor to rotate,however the pulsating nature may cause the commutator segments and brushes to wear out. Thus only small sized dc motors may be used with ac supply.
The operation of an electric motor depends on?
The operation of an electric motor depends on the interaction of magnetic fields, passing of electric current through coils of wire (armature), and the resulting electromagnetic forces that cause the motor to rotate. The direction of the current and the arrangement of the magnetic fields determine the direction of the rotation, while the flow of current and the strength of the magnetic fields dictate the speed and torque of the motor.
What in an electromagnet the what turns the drive shaft which does the work?
In an electromagnet, the magnetic field produced by the flow of electric current through a coiled wire interacts with the permanent magnet on the drive shaft, causing it to rotate. This rotational motion of the drive shaft is what is responsible for performing work in devices like motors or generators.
What energy convertions happen in an electric motor?
In an electric motor, electrical energy is converted into mechanical energy. This conversion is achieved by the interaction of the magnetic fields generated by the flow of electric current in the motor's coils, causing the motor to rotate and produce mechanical work.
