A bulb is not necessary in a circuit. A circuit is simply a series of connections that allows current to flow. A bulb, or a resistor, or something else, is simply a way to do useful work with that current flow, in the case of a bulb, converting power to light and heat.
A light bulb uses energy. It uses electricity.
When the bulb is lit it uses energy. When there is no bulb, no energy is used even if it is switched on.
Light bulbs use 7-150 watts, a toaster uses 700-1200 watts.
A 100 watt light bulb draws a little less than one amp. A refrigerator draws much more when compressor is running. The duty cycle of the light and refrigerator will ultimately determine which uses more power on a Kilowatt Hour basis.
Fluorescent light bulbs use phosphors to convert ultraviolet light into visible light.
A light bulb that uses a filament is also known as an incandescent light bulb.
Like The Light BULB :P
Light+Heat
Artificial light.
To provide illumination
incandescent
Yes, the light bulb uses current when it is turned on.
An LED bulb simply means a Light Emitting Diode Bulb—a bulb that uses LED technology to produce light efficiently.
A light bulb uses energy. It uses electricity.
A light bulb is an electric light that uses the process of a filament wire that is heated to produce an electrical current. When the electrical current passing throught the light bulb it produces light.
It uses less energy to produce the same amount of illumination as a standard light bulb
A typical light bulb uses around 60 watts of power.