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Why is it important for an electromagnet field to flip halfway through the turn of the motor axle?
Wiki User
∙ 12y ago
The angle when the field changes is determined by the angle between coils. For any electrical motor to continue to rotate the field has to move, otherwise the rotor North would reach the stator South and stop.
Wiki User
∙ 12y ago
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Is there a magnet in an electromagnet?
An electromagnet is a type of magnet in which the magnetic field is produced by the flow of electric current. The magnetic field disappears when the current ceases. Take a look at this Wikipedia page for more information: http://en.wikipedia.org/wiki/Electromagnet
Why are electromagnets used in generators?
My only guess is that ,,, because electromagnets are more stronger and powerful than the ordinary magnets. Moreover they provide continuous magnetic field required for the generator. the generator in your car will have an electromagnet in the field the field will set the charge rate new cars have an alternator the field is the electromagnet in the rotor older cars have a true generator where the field is in the stator
Which change will most likely increase the strength of a magnetic field produced by an electromagnet?
Add a battery
What is a magnet made with a battery?
An electromagnet. Anytime electrical current flows through a conductor, a magnetic field is produced.
How do you increase current in electromagnet?
1. Increase the strength of the magnetic field. (More field lines to be cut by wire, therefore more voltage induced) 2. Move the magnet - or the wire - more quickly. (More field lines cut per second, therefore more voltage induced) 3. More coils in wire. (A single straight wire moved in a magnetic field will cut the lines once, but a coil of wire will cut the lines twice. More coils, more cutting, more induced voltage).
When does an electromagnet produce a field?
An electromagnet produces a magnetic field when current is passed through it wire winding.
How does lectromagnet work in loud speakers?
The electromagnet is a very important part of loud speakers. The electromagnet is always placed in the front of the magnet. When the electricity goes through the electromagnet the field is changed and this produces the vibrations in speakers.
Strong temporary magnet formed when a current is passed through a coil of wire?
A magnetic field.
When does an electromagnet produce a magnetic field?
A magnetic field is generated whenever a current is passing through a wire.
What happens to an electromagnet when electricity runs through it?
When an electric pulse runs through an electromagnet, the current travels in the electromagnets coils, causing a magnetic field to be developed inside and outside of the coils. The amount of coils, tightness of the coils, and the space between the coils are all very important factors in the production of said EM field.
What is difference between of Electromagnet and Electric Magnetic Field?
An electromagnet is a magnet that only generates magnetic forces when electricity is running through it, basically a magnet that can be turned on and off. An electromagnetic field is the magnetic force generated when an electromagnet is used.
How is an electromagnet different from a refrigerator magnet?
A refrigerator magnet is magnetic because it is a "permanent" magnet. An electromagnet is a magnetic field caused by a current flowing through a wire.
When a current is passed through a coil of wire what forms Is it A. an electromagnet or B. A commutator?
a magnetic field
What is the main difference between an electromagnet and a solenoid?
An elecromagnet is the entire set of coils which produce a magnetic field when an electrical current is run through the wire. A solenoid is a single coil in the electromagnet.
What is Elctromagnetic?
An electromagnet is created by winding a coil of wire around an iron core. Electrical current is passed through the wire, which creates a magnetic field. Something that is electromagnetic is anything that is an electromagnet.
What do the parts of an electromagnet do?
An electromagnet requires only two parts, a core of ferro-magnetic material and wires winding around it. The wires magnetize the core when current flows through them, and the core then creates the magnetic field which the electromagnet is intended to produce.
How do electric magnets work?
An electromagnet works by focusing electricity into a metal bar with many windings of conductive wire and making it magnetic. Electricity passing through a wire makes a field. Concentrating that field makes an usable electromagnet. Faraday demonstrated this.
