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What is a device with an electromagnet that continually rotates because of a changing electric current?
Wiki User
∙ 14y ago
The device is known as a "motor".
Wiki User
∙ 14y ago
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Why does a metallic piece become very hot when it is surrounded by a coil carrying high frequency alternating current?
This is because of the eddy curents produced due to the changing electric and magnetic fields.
How did the electric drill come to be invented?
Wilhelm Fein invented the portable electric drill in 1895.
Why electric current across a wire drops?
Electric current does not drop. Electric voltage, however, drops across a wire because the wire has non-zero resistance. (Do not confuse electric current with electric voltage - they are not the same.)The reason current does not drop is that, in a series circuit, according to Kirchoff's current law, the current at every point in a series circuit is the same.
How an electrical system transmit energy due to the movement of electric charge?
because it's awesome
Is electronic engineering is better?
No because you could hurt yourself or die wlth an electric shock.
How do electromagnet get their names?
An electromagnet is only magnetic when an electric current is run through it.
Is an electromagnet created by electricity?
Yes. Electromagnets are named only because magnetism is caused because of electric current flowing through.
What is a control test tube?
There are many uses of the electromagnet, it is used to invent generators and electric motors, used it to control the switch relay, use in practical industries, and even in an electric bell etc. Because the electromagnet is a type of magnet in which the magnetic field is produced by the electric current.
An electric motor turns because the electricity passing through its coils produces?
An electric motor turns because its coils are present between the poles of a strong magnet or electromagnet. Whenever a current passes through a wire in a magnetic field, the wire moves. The electromagnet and the copper coils are arranged in such a manner that when a current passes through the coil an armature linked to the coil rotates.
Why do you continually get low voltage electric shocks around the house?
Because the small electricity particles jump around and catch you on the skin. XoXo
Why is an electromagnet considered to be a temporary magnet?
An electromagnet acts as a magnet only while electricity is passing through the coil. Once the electricity is turned off, the electromagnet ceases being a magnet. Electromagnets are much used in scrapyards. Attached to a crane, metal is picked up and deposited into railway wagons, or road haulage vehicles, to be sent for recycling.
Why were some objects attracted by the electromagnet?
Some materials are attracted by an electromagnet because have not a clue
When an electric device is plugged in at your house and using electricity is energy changing forms?
ya, because it has to to have elecetricity
What is the name of a children's game where they are continually changing places?
Piggy in the middle. But I think it's. Pigs because I can't find it to fit the telegraph crossword either lol
How does a car horn work?
FromWhile some modern car horns are actually specialized computer audio systems, the old-fashioned electromagnetic car horns are still common. An electromagnetic horn uses an electromagnet to attract a steel diaphragm and turns that electromagnet on and off rhythmically so that the diaphragm vibrates. In fact, it uses the diaphragm's position to control the power to the electromagnet. Whenever the diaphragm is in its resting position or even farther from the electromagnet, a switch closes to deliver electric current to the electromagnet. The electromagnet then attracts the diaphragm's center. But when the diaphragm moves closer to the electromagnet, as the result of this attraction, the switch opens and current stops flowing to the electromagnet. Because of this arrangement, the diaphragm moves in and out and turns the electromagnet off and on as it does. The diaphragm's tone is determined by the natural resonances of its surface.
Does the size of the core affect the strength of a electromagnet?
That's because the strenght of the electromagnet is related to the number of coils then, the more coils gets more strenght because as you add more coils to the electromagnet you have more and more magnetic field. -I hope this answer helps you if you have a question regarding any questions on any subject please fell free to ask. Thank You
Does electricity flow through iron?
Electromagnets are magnets that are powered by electric currents. An electromagnet is usually more powerful than a permanent magnet that does not use electricity because the strength of an electromagnet can be increased by adding additional material, such as more wire or a bigger core, and the magnetic field can be concentrated using wire coils around the core. i hope this did help
