0
The heating of the wire causes light to be emitted.
Wiki User
∙ 11y ago
Add your answer:
Earn +20 pts
Is a light bulb a soure of light?
Yes, a light bulb is a source of light. When current is going through the filament the resistance generates enough heat that the filament glows, producing light.
How does a bulb glow when a torch is switched on?
If your torch has an incandescent bulb in it, the resistance of the wire in the bulb generates enough heat that light is created. If your torch has an LED bulb, the PN junction in the diode creates light when the diode is forward-biased.
Is resistance in the filament of a lamp essential or not?
Yes, the resistance of the filament of a light bulb is what generates enough heat to make the filament glow and produce light.
What is an example of an energy conversion that produces an unwanted form of energy?
One example is an incandescent light bulb. We normally use it for light, but it also generates a lot of heat.
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 energy comes out of a light bulb?
Light and heat.
Does the place where the light bulb is affect the heat given off?
does the vessel where the light bulb is placed affect the heat
What are the uses of a light bulb?
Light+Heat
What energy occurs in the light bulb?
light and heat energy occur in a light bulb when it is turned on.
What energy forms can electric light bulb make?
A light bulb can make heat and light.
What does a light bulb changes electricity into?
Light and heat.
What does a white light bulb emit?
light and heat
