Onions don't have volts.
110 volts is what comes out of an average wall socket in America. A 100-watt bulb would be powered by 110 volts. You need to be more specific in your question to get a good answer. Small can't be measured.
For lighting up a city you need 120 volts in the USA and 230 volts in Europe. It's just the usual voltage the light bulbs are needing.
it varys from light bulb to light bulb.
Um, a 5 volt light bulb?
If you divide the watts of the bulb by the supply voltage, that is the current. For example a 60 w bulb on a 240 v supply gives a current of 60/240 which is ¼ amp.
Every person has a different power of light bulb. In my room, I have a 7.5 and a whole bunch of 60s. The number of watts you choose for your light bulb depends on how bright you want your light to be. The higher the number, the brighter it is.
A light bulb connected between to wires, each having 300 volts to ground that are in phase, will not light, because there is no differential voltage available to do any work. If each wire has 300 volts to ground and are out of phase (600 volts between them) the light bulb will be lit, if it is rated at least for 600 volts, otherwise it will burn out.
The correct voltage should be printed on the light bulb.
40 watts
The filament will melt AND MAYBE THE LAMP WILL EXPLODE
The current passing through the filament develops power (Watts = Amps * Volts). That power is dissapated in thermal energy (heat) and radiant energy (light).
Watts = Volts x Amps x Power Factor. An incandescent light bulb is a resistive load so PF = 1. ANSWER: = 1/2 Amp