A 60 watt light bulb uses 60 watts of power in a period of one hour or 60 watts in one minute or 60 watts in one second or 60 watts during any period of time.
How much total energy a 60 watt light bulb "consumes", which is the amount of electricity that has to be paid-for, is measured in watt•hours (that's watts times hours). So a 60 watt bulb consumes 60 watt•hours in one hour, or 60 Wh x 24 hr/day = 1440 Wh per day.
That is the same as 1.44 kilowatt•hours (kWh), so, if you look up what your electricity supplier charges for 1 kWh you can figure out how much it would cost you in money. If 1 kWh costs you 25 cents, then leaving a 60 watt light bulb switched on for 24 hours straight would cost you 1.44 kWh x 25¢/kWh = 36 cents.
18,000 J
A 100 w light bulb uses one tenth of a kilowatt of power, therefore in 1 hour it uses one tenth of a kilowatt-hour of energy, that is 0.1 units, or 1.5 p.
To cool a 1000-watt bulb, you'll need to account for the heat it generates. A 1000-watt light bulb produces approximately 1000 watts of heat, which is equivalent to about 3,412 BTU per hour (since 1 watt equals approximately 3.412 BTU/hour). Therefore, to effectively cool a 1000-watt bulb, you would need an air conditioning system or cooling mechanism that can remove that amount of heat, around 3,412 BTU/hour.
The power rating of a light bulb is measured in watts (W), which represents the amount of electrical energy it consumes per unit of time. If a light bulb has a power rating of 60 watts (for example), it means it consumes 60 watt-hours of energy in one hour of operation.
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.
A 150 watt light bulb consumes 150 watts of energy per hour when it is turned on.
Yes, that's the question. A 1000 Watt light uses... 1000 Watts. A 500 Watt light uses, you guessed it... 500 watts. It depends on the size of the bulb. ACTUALLY... Watts are a measure of power, Joules are the measure of energy - you can simply convert watts/hour or watts/second to joules but to say that a 1000 Watt light bulb uses 1000 watts is a ridiculous thing to say =D watts are Wh-1 or Ws-1
18,000 J
The total energy used in one hour by 10 100W light bulbs is 1 kWh (kilowatt-hour). To calculate this, you multiply the power of each bulb by the number of bulbs and the time they are on. In this case, 100W * 10 bulbs * 1 hour = 1000 watt-hours = 1 kWh.
A 100 w light bulb uses one tenth of a kilowatt of power, therefore in 1 hour it uses one tenth of a kilowatt-hour of energy, that is 0.1 units, or 1.5 p.
The power rating of a light bulb is measured in watts (W), which represents the amount of electrical energy it consumes per unit of time. If a light bulb has a power rating of 60 watts (for example), it means it consumes 60 watt-hours of energy in one hour of operation.
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.
A 60W bulb will use 60W X 1 hour / 1000. this will give you the KWh - the units your electricity company uses to charge you.So 60 X 1 =6060/1000 =0.060 Kwh
Typical home energy cost is 10 cents per kilowatt hour A 60 watt bulb running for one hour uses 60 watt hours .10 X (60/1000) = .006 cents per hour 16.66 60watt bulbs on for one hour would cost 10 cents.
Power = Energy/time 100W=Energy/360 Seconds Energy = 100/360 Energy ≈ 0.27 Joules
Well 1 KWh is "1000 watts per hour". So if you have 400w per hour take400watts per hour divided by 1000 and it shows that you get "0.4KWh".AnswerThere is no such thing as a 'kilowatt per hour', which is why the unit of measurement is a 'kilowatt hour', and NOT a 'kilowatt per hour'!.To determine the number of kilowatt hours of energy consumed by the lamp, multiply its power, expressed in kilowatts, by the length of time it is in use. For your example, the answer is 0.4 kWh.
Simple 10,000 hours cause it completes 1 unit in 10 hours.....