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In this electric motor an electric current causes the coil to rotate changing?
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In which case will electric current be induced in a coil of wire?
The coil must experience a changing magnetic field in order to have a current induced. You can rotate the coil between the poles of a magnet, or rotate the magnet around the coil.
How is a motor used in the generation of electricity?
Motors turn rotors that rotate coils of wires over a magnetic field, which creates an electric current in the wire.
Why does electric fan become hot if used for a long period of time?
current required to rotate fan blades ,to maintain the current,the source has to keep expending its energy.part of this energy in maintaining the current consumed in rotating the blades of electric fan and rest of energy may be expended in heat to raise the temperature of gadget.
What is the principle of galvanometer?
Galvometer works on the principle of conversion of electrical energy into mechanical energy. It is an instrument used to indicate the presence, direction or strength of a small electric current.
How do you change electrical energy to kinetic energy?
Generally this is done via an electric motor, which is a shaft suspended (centered, free to rotate on a bearing or slide on a linear path) within a coil of wire. When current is passed through the wire coil, a magnetic field is produced, which acts on the motor shaft, inclining it to rotate or slide, depending on setup. This force is proportional to to the current in the coil, and the resulting motion of the shaft can be observed as having kinetic energy.
In which case will electric current be induced in a coil of wire?
The coil must experience a changing magnetic field in order to have a current induced. You can rotate the coil between the poles of a magnet, or rotate the magnet around the coil.
Which configuration would produce an electric current?
Rotate a coil of copper wire between two magnets.
What causes a bullet to rotate on exit?
What causes it to rotate is the rifling in the barrel. What causes it to continue to rotate after it leaves the barrel is centrifugal force.
Why electric cooling fans rotate in opposite direction if there is a change in current flow?
Cooling fans use electric motors which operate by magnetism. As the direction of the current flow reverse, the magnetic poles reverse and hence the change in direction.
How is a motor used in the generation of electricity?
Motors turn rotors that rotate coils of wires over a magnetic field, which creates an electric current in the wire.
What is the rotate motion?
In cooking, rotate would mean changing from one technique to another.
Why does electric fan become hot if used for a long period of time?
current required to rotate fan blades ,to maintain the current,the source has to keep expending its energy.part of this energy in maintaining the current consumed in rotating the blades of electric fan and rest of energy may be expended in heat to raise the temperature of gadget.
What are 5 differences between motors and generators?
- Electric motor: Electrical → Mechanical - Electric Generator: Mechanical → Electrical A motor and generator perform opposite functions, but their fundamental structure is the same. Their structure is a coil mounted on an axel within a magnetic field. The motor is used to produce rotational motion from an electrical supply. In a motor an electric current is passed through the coil which forces it to rotate as the coil's magnetic field interacts with the field it is mounted in. The generator is used to produce an electric current from rotational motion (on large scale power stations a turbine is used to provide this rotation). In a generator the rotation causes the coil to rotate inside the magnetic field. This induces a current in the coil. The output current is alternating. In power stations it is usually the magnet which is attached to the axel and rotated, with the coils surrounding the magnet. However the end result is the same.
As electric generatar produce electric current due to magnetic induction than why current don't produce in electric motor as magnetic induction should also occur in electric motor?
I will attempt to answer the question I think your asking: 'If an electric generator produces an electric current due to magnetic induction, then why isn't a current produced via the same mechanism in an electric motor?' The answer to the best of my understanding is that it is, or at least, it would be. The reason is that in a generator a conducting wire is rotated in a magnetic field and this induces a current as each charged particle experiences a force as determined by F=q(vxB) [this is the vector form of the equation using the vector product] or F=Bqv if you are unfamiliar with vectors. As this causes electrons to move this manifests itself as an alternating current in a wire. Conversely in a motor and alternating current is passed through a magnetic field in a coil of wire, this time the wire now experiences a force F determined by F=I(lxB). This produces a torque on the centre of the motor and it is this torque that drives the motor. However if you were to rotate the coil of the motor externally without supplying a current to it then the reverse process would take place. This would induce an AC current in the motor which would now function as a generator. As a aside if this current was then driven through the generator it would then rotate exactly as the motor did.
What is the difference between gas engines and electrical engine?
In both cases the desired end is to do work. In a gas engine a controlled explosion of the fuel drives a piston that turns a crank shaft. In an electric motor a current causes an electromagnetic fiels which causes a rotor to rotate. In both cases the shaft power to either turn the wheels and an on board generator.
How is wind made into electicity?
Wind can be made to drive windmills which can cause turbines to rotate. The turbines have electromagnets which move through coils. By electromagnetic induction this generates an electric current.
Does The moon causes the earth to rotate?
False
