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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.
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Can you put a 7 watt bulb in a 40 watt socket?
Yes if it fits. The 40 watts would be an upper limit.
How many watts is light bulb 120 VAC 60Hz 300mA?
Multiply the current by the voltage: 120 times 0.3, which is 40 watts.
What is the energy used in one second when a bulb have 40Watts.?
40 Joules, I think, as the formula for Watts is Joules/Second = Joules per second 40 Watts should equal 40 Joules per one second...
Can I use a higher wattage bulb in a lamp that states 40 watts?
You should not use a higher wattage bulb in a lamp that says 40 watts. The higher wattage could cause the lamp to catch fire due to the excess heat and could cause you serious electrical problems.
How many watts is a 1141 auto bulb?
An 1141 bulb consumes 18.4 watts.
What does 40W mean on a light bulb?
It means that the power consumption of the bulb is 40 watts.
How many watts are in a security light with a 40 watt bulb?
If it is a 40 Watt bulb it converts energy at the rate of 40 Watts as long as it is switched on.
What wattage bulb does a lava lamp use?
the bulb is usually 30 or 40 watts
What does it mean by writing V and W in a bulb?
V on a light bulb means volts. W means watts.
What is the resistance of a 40 watt bulb?
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.
How many kilo watts does a 40 watt bulb use in 1 hour?
0.04 kilowatts one kilowatt is 1000 watts
Can you put a 7 watt bulb in a 40 watt socket?
Yes if it fits. The 40 watts would be an upper limit.
How many watts is light bulb 120 VAC 60Hz 300mA?
Multiply the current by the voltage: 120 times 0.3, which is 40 watts.
What is the energy used in one second when a bulb have 40Watts.?
40 Joules, I think, as the formula for Watts is Joules/Second = Joules per second 40 Watts should equal 40 Joules per one second...
Can I use a higher wattage bulb in a lamp that states 40 watts?
You should not use a higher wattage bulb in a lamp that says 40 watts. The higher wattage could cause the lamp to catch fire due to the excess heat and could cause you serious electrical problems.
What does the difference between a watts and a 100-watts light bulb describe?
Those numbers describe the power used by the two bulbs, in other words how many joules of electrical energy they use per second. The 100 watt bulb uses 40 watts more.
What is 60w light bulb?
a normal incandescent 60 watt light bulb uses 60 watts of electricity to produce 20 watts worth of light, and 40 watts worth of heat. It is more of a heat bulb than a light bulb. it is great if you can capitalise on the free heat, but if it is not cold in your house, turn it off. is there a better bulb? no. why are they ideal? cheap (as low as 10 cents for the el cheapos), never change shape/design/size/compatability, make pleasant light I could go on for an hour, but the best bulb is the cheapest.
