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Why does current stop flowing in a light bulb when the filament breaks?
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Is a light bulb an insulator or conductor?
It is a conductor, but the filament is a resistor : as current flows through the filament, some of the energy is released as heat and light.
What is light bulb filament?
It is the extremely thin wire inside the bulb. It is so thin that when the electricity goes through produce light, when that filament breaks the bulb is not good.
What is light produced?
A filament is heated by an electric current and photons are emitted.
Why does the light bulb not work when the filament is broken?
A light bulb works by passing an electric current through the filament, which is usually made from a high resistance substance such as tungsten. When the current flows through, the filament glows which produces the light. When it burns out, no electricity passes and no glowing occurs. Source: i just know
Is a filament of a light bulb glows when an electric current flows through it is a chemical change?
It is a physical change brought about by the exitation of molecules producing heat and light. A general rule of thumb is that a physical change can be repeated on an article and chemical change cannot. Remove the current from a filament and it is still a filament.
When the bulb is the resistance what this tells about the resistance?
An incandescent bulb has a filament that has a resistance. The value of the resistance determines the current that will flow for a given supply voltage. The heat generated by the current flowing through the filament gives off light. As the resistance of the filament decreases the current increases and you get more light.
Why are electric light bulbs hot to the touch?
This is the case in any bulb that heats a filament. The current flowing through the filament generates heat which radiates photons and produces the light you see.
What happens to the filament when light bulbs blows?
The filament breaks.
What was a resistance invention?
The incandescent light bulb. The tungsten filament lights due to it's resistance of the current flowing through it.
When the flashlight is on is it static or current electricity?
When the flashlight is ON , electrical current is flowing from one terminal of thebattery, through the light-bulb filament, to the other terminal of the battery.
How does electric lamp function using electricity?
You plug it in and it lights up. Current flowing in the filament makes it white hot, and it emits light.
How does the electric lamp function using electricity?
You plug it in and it lights up. Current flowing in the filament makes it white hot, and it emits light.
Does more current flow into a light bulb than out of it?
No. Although there is a voltage drop across the filament of an incandescent light bulb, the amount of current flowing out is identical to what flows in: current in = current out. That is an important fact to always keep in mind when solving simple electrical circuits: the sum of the currents flowing into a node equals the sum of the currents flowing out of it.
Why is the filament thinner than the copper wire used in circuit wiring?
Filament is thiner than copper hence it dode offers very low resitstance to electric current flowing through it. Therefore heat energy generated with filament during current flow is converted to light. It is possible generate light with lesser power consumption . This lower power requirments is possible due to lesser specific resistance of filament compared to copper.
Why do light filament bulbs usually blow when they are first switched on?
because when they are first switched on a large surge of electrical current flow through a cold filament. When you first switch on the bulb the resistance is small, so you get a current surge which breaks the weakened filament. The filament is weakened by repeated heating and cooling from the bulb being turned on and off; which makes it brittle.
Will the bulb light if the filament is broken Why?
No, the broken filament breaks the connection which electricity needs to complete the circuit.
Define the term incandescent?
Incandescent means an object is producing light because of a high temperature. In an incandescent light bulb, the current flowing through the filament causes it to heat up to the point that it glows brightly.
