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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".)
What else can I help you with?
What happens to a wire when and electric current passes through it?
When an electric current passes through a wire, the wire heats up due to the resistance in the material. The current causes electrons to flow through the wire, creating a magnetic field around it. This effect is used in electromagnets and electric motors.
What type of energy flows through a wire?
Electric energy flows through a wire when an electric current passes through it.
What happens when an electric current passes through a wire?
When an electric current passes through a wire, the flow of electrons creates a magnetic field around the wire. This phenomenon is known as electromagnetism. The strength of the magnetic field is directly proportional to the amount of current flowing through the wire.
Why does a wire get hot when an electric current passes through it?
When an electric current passes through a wire, the wire gets hot because the flow of electrons in the wire encounters resistance, which causes the electrons to collide with atoms in the wire, generating heat as a byproduct of this interaction.
What happens when electric current passes through a coil of wire?
When electric current passes through a coil of wire, a magnetic field is generated around the coil. This phenomenon is known as electromagnetic induction. The strength of the magnetic field is directly proportional to the amount of current flowing through the coil.
What happens to a wire when and electric current passes through it?
When an electric current passes through a wire, the wire heats up due to the resistance in the material. The current causes electrons to flow through the wire, creating a magnetic field around it. This effect is used in electromagnets and electric motors.
What type of energy flows through a wire?
Electric energy flows through a wire when an electric current passes through it.
What happens when an electric current passes through a wire?
When an electric current passes through a wire, the flow of electrons creates a magnetic field around the wire. This phenomenon is known as electromagnetism. The strength of the magnetic field is directly proportional to the amount of current flowing through the wire.
What will happen to an electric wire if a large current passes through it?
It will get hot.
Why does a wire get hot when an electric current passes through it?
When an electric current passes through a wire, the wire gets hot because the flow of electrons in the wire encounters resistance, which causes the electrons to collide with atoms in the wire, generating heat as a byproduct of this interaction.
What happens when electric current passes through a coil of wire?
When electric current passes through a coil of wire, a magnetic field is generated around the coil. This phenomenon is known as electromagnetic induction. The strength of the magnetic field is directly proportional to the amount of current flowing through the coil.
A flow of electric charge in wire?
When a flow of electric charge passes through a wire, it creates an electric current. This current is caused by the movement of electrons within the wire, which carry the charge from one point to another. The magnitude of the current is measured in amperes (A).
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 are magnets and elctricity related?
Magnets and electricity are related through electromagnetism. When an electric current passes through a coiled wire, it creates a magnetic field around the wire. This principle is used in electromagnets, electric motors, and generators.
Why does the current flow through wire?
Current flows through a wire when there is a difference in electric potential between two points. This potential difference creates an electric field that drives the flow of electric charge (current) through the wire.
Name of the thin wire inside electric bulb?
The thin wire inside an electric bulb is called a filament. It is usually made of tungsten and becomes hot and emits light when an electric current passes through it.
How current passes through wire?
though electrons
