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What happens to the resistance of a filament if it is replaced by a thicker wire?
The resistance decreases
What happens to the resistance of a filament if it is replaced by a shorter wire?
the resistance decreases APEX
What happens to the current in a filament is replaced by a longer wire?
resistance increases
Can you use a copper wire to make a filament of an electric bulb?
No, copper wire cannot be used to make the filament of an electric bulb as copper wire has very low resistance. Therefore, the bulb will not glow if current is passed. It would also melt - the filament has to be white-hot to be any use!
Why is the filament used in bulbs thin and long?
because the filament should be heated so the resistance should be high .so it uses a long and thin wire
What happens to the resistance of a filament if it is replaced by a thicker wire?
The resistance decreases
What happens to the resistance of a filament if it is replaced by a shorter wire?
the resistance decreases APEX
What happens to the current in a filament is replaced by a longer wire?
resistance increases
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 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.
Can you use a copper wire to make a filament of an electric bulb?
No, copper wire cannot be used to make the filament of an electric bulb as copper wire has very low resistance. Therefore, the bulb will not glow if current is passed. It would also melt - the filament has to be white-hot to be any use!
Why is the filament used in bulbs thin and long?
because the filament should be heated so the resistance should be high .so it uses a long and thin wire
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.
Which has the thickest filament - a high-resistance or a low-resistance bulb?
A low resistance bulb has a thicker filament.
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.
