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by running electric current all through a wire a magnetic field is created
Mylene Gleichner
Wiki User
∙ 13y agoWhen you wrap the wire around the nail, make certain that you wrap the wire all in one direction. You need to do this because the direction of a magnet field depends on the direction of the electric current creating it. The movement of electric charges creates a magnetic field. If you could see the magnetic field around a wire that has electricity flowing through it, it would look like a series of circles around the wire. If an electric current is flowing directly towards you, the magnetic field created by it circles around the wire in a counter-clockwise direction. If the direction of the electric current is reversed, the magnetic field reverses also and circles the wire in a clockwise direction. If you wrap some of the wire around the nail in one direction and some of the wire in the other direction, the magnetic fields from the different sections fight each other and cancel out, reducing the strength of your magnet.
Wiki User
∙ 12y agothey work by making elecricity flowing through from 1 end to the other
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Inductor works in direct current?
Yes, an inductor works with direct current. It is called an electromagnet. Of course, a practical electromagnet has series resistance, otherwise the current in the inductor would increase to the limit of the current/voltage source.
How does electromagnet works in transformers?
it is because of major major ang nothing just search it we do not know it
How does a scrap heap crane work?
A scrapheap crane works simply by a piece of soft iron surrounded in coper coiled coil and a electromagnet. when the switch is activated a current is sent from the battery to the electromagnet!
What kind of magnet is electromagnet?
An electromagnet is a piece of iron(usually a cylinder or rectangle)wrapped around with copper wire that when electricity runs through it it works like a magnet. Also called artificial magnet.
What kind of magnet is an electromagnet?
An electromagnet is a piece of iron(usually a cylinder or rectangle)wrapped around with copper wire that when electricity runs through it it works like a magnet. Also called artificial magnet.
How does relay works?
Current is supplied to the electromagnet and magnitised and attract the soft iron armature. Then it closes the contact allowing the current to flow.
Which is better a permanent magnet or an electromagnet?
electromagnet
Strong temporary magnet formed when a current is passed through a coil of wire?
A magnetic field.
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.
Why do the number of windings around an electromagnet affect the strength of and electromagnet?
This is because an electromagnet gets its magnetic force from the electrons passing through the wire, the more coils there are the more electrons passing through so the more magnetic power. Obviously this only works to an extent since you would need more voltage and so on.
Can a electromagnet works without inductance?
Inductance is the result of energy being stored in a magnetic field. You can't have a magnetic field without inductance.
How does electromagnetic relay works?
Current is supplied to the electromagnet and magnitised and attract the soft iron armature. Then it closes the contact allowing the current to flow.
