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What is soleniod?
A current-carrying coil of wire that acts like a magnet when a current passes through it.
What happens when electric current passes through a coil of wire?
A magnetic field generates around the wire.
Why does a wire get hot when an electric 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".)
Why the temp of metallic wire rises when a current passes through it?
When current is passed through the wire, the negatively charged electrons (Current) face resistance as the molecules of the conductor block their way. These moving electrons collide with the molecules of the conductor and heat is produced which heats up the metallic 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
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 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
What type of stress produces in a wire during the passing of current?
Most obviously thermal stresses are produced in a wire when current passes through it. When current passes through a wire, electrons collide with each other and result in heating of the wire element. As a result of this heating, thermal stresses are generated in the wire.
What will happen to an electric wire if a large current passes through it?
It will get hot.
What is soleniod?
A current-carrying coil of wire that acts like a magnet when a current passes through it.
What happens when electric current passes through a coil of wire?
A magnetic field generates around the wire.
Why does a wire get hot when an electric 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".)
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".)
Why the temp of metallic wire rises when a current passes through it?
When current is passed through the wire, the negatively charged electrons (Current) face resistance as the molecules of the conductor block their way. These moving electrons collide with the molecules of the conductor and heat is produced which heats up the metallic wire.
How much current at 240 volts passes through a wire with a resistance of 100 ohms?
current = voltage/resistanceAssuming the 240 volts is across the 100 ohm wire, 2.4 amperespower = current * voltageResulting in the wire dissipating 576 watts... One hot 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).
