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Why does a wire get hot when an electric current passes through it?
Wiki User
∙ 12y ago
Because the wire has resistance.
The power (number of watts) dissipated by any resistance when current passes through it is
(the number of amperes of current)2 multiplied by (the number of ohms of resistance).
To reduce the power lost from the wire, the choices are:
-- reduce the current passing through the wire
-- use thicker wire
-- keep the wire as cold as possible.
(If the wire is made of the right material, and you make it cold enough,
then all of its resistance disappears, and it's called a "superconductor".)
Wiki User
∙ 12y ago
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What happens when electric current passes through a coil of wire?
A magnetic field generates around the wire.
Examples of heating effect of electric current?
-kettle -electric heater that's all i have! :)) When a current passes through a wire, the wire heats up. This is caused by the conversion of electrical energy into heat energy. /the heat produced depends on the resistance of the wire.
What is soleniod?
A current-carrying coil of wire that acts like a magnet when a current passes through it.
Will a thicker or thinner copper wire of the same length allow more electric current to pass through?
A thicker wire will transmit more current
What is a flow of electrons moving along a wire or conductor?
An electric current. <<>> The term used for the flow of electrons through a conductor is amperage.
What will happen to an electric wire if a large current passes through it?
It will get hot.
What happens when electric current passes through a coil of wire?
A magnetic field generates around the wire.
Examples of heating effect of electric current?
-kettle -electric heater that's all i have! :)) When a current passes through a wire, the wire heats up. This is caused by the conversion of electrical energy into heat energy. /the heat produced depends on the resistance of the wire.
How current passes through wire?
though electrons
When a electric current flows through a wire it creates a?
When an electrical current flows through a wire it creates what is called an Electro Magnetic Field.A magnetic field is create when an electric current flows through a wire.
Why does an electric wire get hot when current passes through it?
Because the wire has resistance.The power (number of watts) dissipated by any resistance when current passes through it is(the number of amperes of current)2 multiplied by (the number of ohms of resistance).To reduce the power lost from the wire, the choices are:-- reduce the current passing through the wire-- use thicker wire-- keep the wire as cold as possible.(If the wire is made of the right material, and you make it cold enough,then all of its resistance disappears, and it's called a "superconductor".)
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.
What is the principle of electromagnetism?
pricinples of electromagnetism state that when current passes through a piece of wire magnetic field is generated around the piece of wire and when a piece of wire passes through the magnetic field current is induced into the piece of wire
What is a magnet created when electric current flows through a coil of wire?
A magnet created when electric current flows through a coil of wire is called an electromagnet.
What is the three principle of electromagnet?
pricinples of electromagnetism state that when current passes through a piece of wire magnetic field is generated around the piece of wire and when a piece of wire passes through the magnetic field current is induced into the piece of wire
How does an electric circuit with a battery lamp copper wire and switch work?
The battery provides the current and the energy; the lamp consumes the energy when the current goes through it; the copper wire conducts the current; and the switch lets you close or open the circuit (so that current passes, or doesn't pass, through).
Does an electric current traveling through a wire generate a magnetic field?
Yes, an electric current traveling through a wire generates a magnetic field. There is no way that it cannot do this.
