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Most electric motors require magnet to operate on the principal of attraction. A motor can operate without any permanents magnets by replacing the with another coil of wire.
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The function of an electric motor is to?
To apply the torque generated by the motor to do useful work.
What is a device that uses electricity to work?
That sounds like an electric motor.That sounds like an electric motor.That sounds like an electric motor.That sounds like an electric motor.
How does an elctro magnet work?
by running electric current all through a wire a magnetic field is created
How electric current flow in washing machine?
A washing machine motor is similar to any electric motor. It is an AC (alternating current) electric motor. There are also DC (direct current) electric motors. Most electric motors in the house like in a vacuum cleaner or washing machine are AC because that is what you have in your house. Most electric motors in your car like the starter and windshield whipper motor are DC because they run on the cars DC battery system. DC and AC electric motors are a little different but work in a similar way. If you take a piece of iron and wrap a coil of wire around it it will become an electro-magnet while the current is going through the wire coil. An electric motor has special switches called brushes that turn the two or more electro magnets on and off. When you turn on the motor one of the coils is on and attracts a magnetic attached to a rotor. The magnet turns till it reaches the coil and strikes a brush that turns off the first electro magnet and turns on the next one so that the magnet keeps turning because it is now attracted to the next magnet. It keeps spinning around and around being attracted to different coils as they keep turning on and off, this of course happens very fast. What I've given you is a very simple description of how an electric motor works. Some motors are more complex with many magnets and coils but still work in this same basic way.
Can you make a magnet without using a magnetic material Explain?
If you are referring to a magnet as an object that possesses a permanent magnetic field, then yes. There are three circumstances where magnetic fields exist, but not as a result of a permanent magnet. 1. Electric current causes a magnetic field. Thus, any wire carrying a current or even a current without a wire (like a lightning bolt) will be surrounded by a magnetic field. Since electric current is made up of moving electric charges, it is actually true than any moving electric charge creates a magnetic field. 2. It is difficult to observe outside of a scientific laboratory, but when there is an electric field that is varying in time, that creates a magnetic field. Though not easy to demonstrate directly, this turns out the physical phenomena the allows the creation of elecrtromagnetic waves, e.g. like the light we see with our eyes. 3. Thirdly, one can cause materials that are not able to work as permanent magnets to act as temporary magnets. This is the basis for electromagnets. A steel or iron core with an electric current running through a coil surrounding the core will produce a magnetic field. If you simply cut off the power source, the electric current will no longer flow through the coil. No electric current, no magnetic field. When a non-permanent magnet is created, the magnetic field it produces is just the same as the magnetic field of a permanent magnet, until the source is removed and the field disappears. All of these matters together are an essential part of the basics of electromagnetism which describes how and why the phenomena work.
What is the point of having an electric motor?
It makes work easier than doing everything by hand without the motor.
How do you test an electric motor without a meter?
Turn it on... Does it work ? Yes - job done No - Bummer!
What is a magnet motor?
A magnet motor, or permanent magnet motor, is a hypothetical device that, if made to work, would use the attraction and repulsion properties of permanent magnets to rotate a shaft indefinitely, or until the magnetic domains disassociate. The concept of the magnet motor is contrary to several known laws of physics, including the law of conservation of energy. Advocates of such devices insist that magnets have the power to do work, but the reality is that a magnetic field has no power to do work unless energy is stored within the field, which is done by moving the magnet with an outside source, such as the movement of one's hand or an electric current. Once stored, and the motor set in motion, this potential energy is quickly converted to kinetic energy, and then to heat through friction. A magnet motor cannot rotate on its own because it produces no energy of its own, thus the very idea of the magnet motor is fundamentally flawed.
How does the magnet work in a DVD players?
There are magnets in the motor that spins the disk, and there are magnets that move the reading head (laser) in and out on the disk as it plays. They are electromagnets - they only work if an electrical current is applied to the coil of the magnet.
The function of an electric motor is to?
To apply the torque generated by the motor to do useful work.
An electric motor turns energy into what?
work
How does an electromagnet work in a scrapyard?
In a scrapyard when the workers need to pick up a car there is a crane with a magnet on it. So when they see a car they turn the electric magnet on so it picks up the car and they turn off the electric magnet to drop the car.
How does electric golf carts work?
an electric motor drives the cart, similar to an electric car or a gocart.
What makes an electric pencil sharpener work?
An electric pencil sharpener works by means of a small electric motor. The motor rotates the blades, sharpening the pencil.?æ
What is a device that uses electricity to work?
That sounds like an electric motor.That sounds like an electric motor.That sounds like an electric motor.That sounds like an electric motor.
How does an electric motor look like?
A bar magnet is any RECTANGULAR object that has a magnetic field.It can be made out of any ferromagnetic substance, but it is mainly made out of iron or steel. Most of the time, a bar magnet is a pernament magnet, meaning it does not need an electric current in order for it to retain its magnetism.
How Electric Motors Work?
Many people are not aware of the fact that electric motors exist all around them. They are used in their car, washing machine, food processor, and so on. Even fewer people are aware of the way in which an electric motor actually works. Here are some of the basics. An electric motor is powered by the forces of electricity and magnetism. Magnets are used in order to create motion. Consider a simple magnet, with a north and south pole. The fact that a pole is attracted by its opposite and repulsed by the same is utilized in order to create the motion inside of an electric motor. The heart of the electric motor is the rotor, which is an electromagnet. An electromagnet consists of copper wiring that has been wound in a circle. When electricity moves in a circle, it creates a magnetic field. When electricity moves through the coil of wire, it becomes a magnet. When electricity is not passing through it, it is simply a coil of copper wiring. Inside an electric motor, there is at least one permanent magnet. When the electromagnet is activated, the north pole of the permanent magnet faces the north pole of the electromagnet. The permanent magnet is attached to an arm that can rotate around the electromagnet. Since the permanent magnet is repulsed by the north end of the electromagnet, it swings around to the other side. The direction of the electricity through the electromagnet is then reversed. This causes the north end of the electromagnet to become the south end. When this happens, the permanent magnet against swings over to the other side. This is the basic principle behind how all electric motors work. There are two basic types of electric motors: those that run on alternating current and those that run on direct current. A motor that runs on alternating current can take advantage of the fact that the direction of the electricity is constantly reversing in order to constantly reverse the polarity of the electromagnet and keep the electric motor running. In the case of direct current, a device known as a commutator is used in order to switch the direction of the current back and forth.
