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On this calculation I am assuming that the light bulb is using a 120 volt source. Watts = Amps x Volts. Amps = Watts/Volts, 40/120 = .33 amps. R = Volts/Amps, 120/.33 = 363.6 ohms resistance in the 40 watt light bulb.

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0A 60 watt incandescent bulb using 120 Volts draws about one-half amp. Watts = Volts x Amps (For a resistive load). By Ohm's Law Volts = Current x Resistance so R = 120 V / .5 A = 240 Ohms. Doing the same math for a 40 watt bulb you get 360 Ohms.

the 40 watt bulb will glow brighter in series because it will consume less power.

which has more resistance 100 watt bulb or 60 watt bulb? In short, the 60 watt bulb has more resistance. Power can be calculated using the following formula: P = (V^2)/R The power rating for a light bulb is measured using a 120 Volt source. Since the voltage will be the same for both light bulbs, using the formula, the bulb with the lowest resistance would have the greatest power.

A 75 watt light bulb has more resistance because less current is going through which causes less light.

60 watts. This means that the 40 watt bulb uses less electricity but it also produces less light.

The 5 watt bulb will glow brightly. The reason has to do with resistance. The higher watt bulb will have the lowest resistance. When you put the two in series, low resistance causes the lowest voltage drop. Higher resistance causes higher voltage drop, therefore the lowest wattage (highest resistance) bulb will have more voltage across it than the other bulb, and will glow brighter.

It depends on the bulb and its efficiency. A typical 40 watt incandescent bulb puts out about 475 lumens.

Electrically, a 10-watt bulb uses 75% less energy than a 40-watt bulb. For the same circuit voltage, let's say 120v, a 10-watt bulb would only draw 0.083 amperes, compared to 0.33 A for a 40-watt bulb. Light-output-wise, they may not have the same ratio of light output. If a 40-watt lightbulb provides 400 lumens of light, a 10-watt lightbulb that is more energy-efficient than the 40-watt bulb may produce more than 100 lumens which is greater than 1/4 of the light output of the 40-watt bulb. A 10-watt bulb that is less energy-efficient than the same 40-watt bulb would produce less than 100 lumens of light.

An electrical watt is a measure of power. A 40 watt light bulb uses 40 watts of electrical power. It has a relative measure of twice the light output of a 20 watt bulb and one half the output of an 80 watt bulb. A 40 watt bulb uses 40 Joules of energy each second, or 40 watt-hours of energy each hour. In 1000 hours it uses 40 kilowatt-hours or Units of electrical energy.

If it is a 40 Watt bulb it converts energy at the rate of 40 Watts as long as it is switched on.

No, the highest wattage bulb will have the lowest resistance.

A watt is 1 volt x 1 amp. Your question doesn't contain enough information. You would need to know the resistance of the bulb, which is related to the design.

They will last about the same period of time.

A 40 watt bulb is dimmer than a 100 watt bulb.

Technically speaking a bulb and a lamp are the same thing. You can use a 60 watt bulb in a fixture calling for a 40 watt bulb but I wouldn't. The lighting fixture may get to hot, melt and start a fire.

40 watt hours or .04 kWh

40 watt light bulb. This is obvious. Go do an experiment. -_-

It will work, a 40 w bulb is a little brighter than a 34 w and it takes a little more electric power.

no because it will be to little

Yes. A 60W bulb has a higher resistance than the 40W buld. The extra resistance requires more current to light up the bulb. The fillament then glows brighter.

The resistance of a light bulb varies, depending on the type of bulb, the power rating, and the temperature. A typical incandescent 60 watt bulb, for instance has a cold resistance of about 30 ohms, and a hot resistance of about 240 ohms.

looking for a 40 watt g bulb what is that?

It depends on the bulb. A 25 watt bulb uses 25 watts, a 40 watt uses 40 watts, a 60 watt bulb uses 60 watts, a 75 watt bulb uses 75 watts, a 100 watt bulb uses 100 watts, all the way up to a 500 watt bulb. Incandescent bulbs are about to cease to exist, so this answer is only good through the fall.

Yes you can as long as it doesnt have a a higher wattage or voltage

Yes if it fits. The 40 watts would be an upper limit.

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