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The part of a light bulb that is a poor conductor so that the friction causes it to light up and glow?
Wiki User
∙ 14y ago
That part of a light bulb that causes light to light up is called the filament, and it is typically made from tungsten.
Wiki User
∙ 14y ago
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What parts of a light bulb are conductors or insulators?
The conductors are the two wires you see supporting the filament. The glass supporting all this is an insulator. The metal ring around the base and the very bottom of the bulb conduct the electricity into the bulb. The plastic between them is an insulator. --- In incandescent bulbs, the filament of the bulb is a conductor, but has a high resistance to the flow of current, causing it to heat up and glow. In fluorescent bulbs, the gas in the tube resists the flow and is ionized. The ultraviolet photons that it gives off cause the inside of the tube (coated with phosphors) to glow.
How can you use a wire battery and a light bulb to test an item to see if it is a conductor of electricity?
I am going to assume you meant Three wires, Battery and Light Bulb. (punctuation and plurals are important) Hook the light to one post of the battery Hooked from the light to the item being tested (use the other light connection, not the one connected to the battery) connect the other end of the test item to the unused terminal on the battery. Light comes on means it conducts electricity No Light, it does not.
What does amps do in a light bulb?
Take the wattage of the bulb and divide that by the voltage of the bulb. This will give the current the bulb draws. Amps are a measure of charge (electron) at an instant of time through a conductor. In an incandescent bulb the filament is heated by the current and the characteristics of the filament, usually tungsten, is that it gives off light when heated.
Can aluminum foil make a light bulb work?
Yes. Aluminium is a very good conductor of electricity, and works with salt water.
What does a light bulb have to do with an electrical light source?
A light bulb is a source of electric light. In an incandescent light bulb, the glass bulb forms a protective shield around a glowing filament. The air inside the glass bulb is removed, or replaced with an inert gas. Electric current is passed through a thin metal filament (usually tungsten), which causes it to glow white hot, giving out light. The protective bulb stops the filament from burning up, as it has no Oxygen.
Is a light bulb a conductor?
no
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.
Is light bulb holder electrical conductor?
yes
Why does a lemon light a bulb?
A lemon can power a light bulb because of the acid in it. The acid is used as a conductor and powers the lemon.
Why does the light bulb light?
A bulb lights up because of the friction happening between the atoms usually in the metal filament. thus producing light.
Is the material inside a light bulb a conductor or resistance?
It has high resistance.
Why does the light bulb light up?
A bulb lights up because of the friction happening between the atoms usually in the metal filament. thus producing light.
Is wood can let the bulb to light up?
Wood can not let a light bulb light up because wood is a very poor conductor of electicity. A better conductor would be types of metals such as copper or gold, which is used in many electronics.
Why toothpick can't let the bulb light up?
Because the bulb fused or toothpick is not the good conductor of eletricity.
What causes a light bulb not to work?
Bad bulb, no power, no ground.
Why can't you see a light bulb when it is switched on?
You can see a light bulb when it is on but it is so bright, the coil causes energy which is transferred as light.
What material will allow electricity to flow between a battery and light a light bulb?
A conductor - usually copper wire.
