Watts = Amps * Volts
100 watts = x amps * 120 volts
100 watts / 120 volts = ~.83 amps
When lighted, a 100 watt 120 volt bulb takes 0.83 amps on a 120 volt supply (100 / 120 = .833)
However, an incandescent bulb may take ten times it's operating current for an instant as the filament heats up. That's why bulbs often burn out just as they are switched on - the high current and the sudden temperature change stress weak points in the filament.
A typical resistance for a cold light bulb is about 10 ohms. The initial current on a 120 v system is therefore 12 amps (120/10) but the resistance increases rapidly as the bulb's tungsten filament heats up
After about 13 milliseconds the bulb has reached its working resistance of 144 ohms and the current drawn is roughly 0.83 amps (for a 100 watt bulb at 120 v).
The true inrush current is the area under the curve obtained from an oscilloscope trace reading. However, if this reading is not available, then it is safe to assume that for incandescent lightbulbs the inrush current is around 10 times the normal current. However the inrush is over so quickly that the fuse is not in danger of blowing (edited to remove 'gibberish').
When lighted, a 100 watt 120 volt bulb takes 0.83 amps on a 120 volt supply (100 / 120 = .833)
However, an incandescent bulb may take ten times it's operating current for an instant as the filament heats up. That's why bulbs often burn out just as they are switched on - the high current and the sudden temperature change stress weak points in the filament.
The formula you are looking for is I = W/E. Amps = Watts/Volts
The formula you are looking for is I = W/E, Amps = 100/230.
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.
Depends on the size of the LED light and the voltage applied. An example is an LED 24 volt globe light that pulls 8 watts which draw 0.333333 amps. Take an LED 120 volt light bulb draws 12 watts and will pull 0.1 amps. The same bulb at 240 volts wil draw 0.05 amps. it really depends on the watts and voltage applied. An average would be about 0.1 amps.
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This depends on many factors.
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.
Depends on the size of the LED light and the voltage applied. An example is an LED 24 volt globe light that pulls 8 watts which draw 0.333333 amps. Take an LED 120 volt light bulb draws 12 watts and will pull 0.1 amps. The same bulb at 240 volts wil draw 0.05 amps. it really depends on the watts and voltage applied. An average would be about 0.1 amps.
Define "light bulb"
You just have to divide the watts by the voltage to find the amps. For example 60 watts on a 120 v system would take ½ amp.
You wouldn't use a potato to screw in a light bulb... if the glass in the light bulb breaks as you're removing it, you can use a potato to take the light bulb out.
that depends on how high up the light bulb is
One professional will take 1 second to screw in a light bulb and 0.5 seconds to install a bayonet cap light bulb.
187 light bulb atemps
Watts = Amps * Volts100 watts = x amps * 120 volts100 watts / 120 volts = ~.83 ampsWhen lighted, a 100 watt 120 volt bulb takes 0.83 amps on a 120 volt supply (100 / 120 = .833)However, an incandescent bulb may take ten times it's operating current for an instant as the filament heats up. That's why bulbs often burn out just as they are switched on - the high current and the sudden temperature change stress weak points in the filament.
A ''light year''
None! as Oranges can't either put up nor light an light bulb! ;)
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