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The resistance of a filament wire affects the amount of current passing through it and the amount of heat produced. Higher resistance leads to higher heat generation and light emission, resulting in brighter light. However, too much resistance can cause the filament to overheat and fail prematurely.
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What happens to the resistance of a filament if it is replaced by a shorter wire?
If a filament is replaced by a shorter wire, the resistance will decrease. Resistance is directly proportional to the length of the wire, so a shorter wire will have lower resistance. This is because there is less material for the electrons to travel through, resulting in less opposition to their flow.
Why does the filament become hot?
The filament becomes hot when electricity passes through it, due to resistance in the wire. This resistance causes the filament to heat up and emit light in an incandescent bulb.
What happens to the resistance of a filament if it is replaced by a thicker wire?
If a filament is replaced by a thicker wire, the resistance of the circuit will decrease. Thicker wires have lower resistance because they offer less resistance to the flow of electric current compared to thinner wires of the same material and length.
What happens to the current in a filament is replaced by a longer wire?
If a longer wire is used to replace the filament, the resistance in the circuit will increase due to the longer length of the wire. This increase in resistance will cause a decrease in current flowing through the circuit, which can affect the overall performance of the system.
Why filament gets heated?
Filament gets heated when an electric current passes through it, causing resistance in the filament wire. The resistance converts electrical energy into heat energy, which then causes the filament to reach high temperatures and emit light.
What happens to the resistance of a filament if it is replaced by a shorter wire?
If a filament is replaced by a shorter wire, the resistance will decrease. Resistance is directly proportional to the length of the wire, so a shorter wire will have lower resistance. This is because there is less material for the electrons to travel through, resulting in less opposition to their flow.
Why does the filament become hot?
The filament becomes hot when electricity passes through it, due to resistance in the wire. This resistance causes the filament to heat up and emit light in an incandescent bulb.
What happens to the resistance of a filament if it is replaced by a thicker wire?
If a filament is replaced by a thicker wire, the resistance of the circuit will decrease. Thicker wires have lower resistance because they offer less resistance to the flow of electric current compared to thinner wires of the same material and length.
What happens to the current in a filament is replaced by a longer wire?
If a longer wire is used to replace the filament, the resistance in the circuit will increase due to the longer length of the wire. This increase in resistance will cause a decrease in current flowing through the circuit, which can affect the overall performance of the system.
Why filament gets heated?
Filament gets heated when an electric current passes through it, causing resistance in the filament wire. The resistance converts electrical energy into heat energy, which then causes the filament to reach high temperatures and emit light.
What property of the wire account the wire in filament behave differently other wires in the circuit when the current flow?
The resistance of the wire is the property that determines how the wire behaves when current flows through it. If the wire has a higher resistance, it will heat up more and potentially glow, like a filament in a light bulb. Other wires in the circuit may have lower resistance and therefore not exhibit the same behavior.
Why is the filament inside a wire coiled?
The coiled filament in a wire increases the resistance, which in turn increases the amount of heat produced when an electric current passes through it. This enables the wire to function as a heating element in appliances like toasters and ovens.
Why does the resistance of a filament bulb depend on the current in the bulb?
The resistance of a piece of wire changes with temperature. In a filament bulb the wire is heated to about 3000 degrees C so a large change in resistance can be expected. A 240 v 105 w halogen bulb has a cold resistance of 35 ohms, but when running its resistance is 549 ohms.
Why does a wire connected to a bulb not glow where as the filament of the bulb glows when the same current is passed through both connections?
It glows because the filament wire is exposed in a vacuum and electrically, the light is a high resistance load. You know the sparks you get when you rub two exposed hot electrical wires together? That's a dead short. Now, put that short in a vacuum where the wire can't oxidize, and presto! Incandescent light. The filament is made of tungsten, and tungsten has a very, very, very high melting point. It took Thomas Edison a long time to find it, but find it he did.
Is a light a conductor or a insulator?
Light bulb is itsef composed of many parts like filament wire and external casing of glass. Among which current flowes through the tugasten filament wire which is a 'conductor' of high resistance.
Is a light a insulator or conductor?
Light bulb is itsef composed of many parts like filament wire and external casing of glass. Among which current flowes through the tugasten filament wire which is a 'conductor' of high resistance.
What is the thin coil of wire inside a light bulb called?
If you are talking about an incandescent light bulb then its called a filament. It is thin so that it has a high level of resistance. Current going through the filament causes it to heat up and give off EM radiation in the spectrum of visible light.
