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The bulb's power, 75 watts, is the power it uses continuously all the time it is switched on.
The energy it uses can be measured in watt-seconds (Joules) or in watt-hours. A 75 watt bulb uses 75 watt-hours each hour, which is 0.075 kilowatt-hour.
Wiki User
∙ 11y ago
A 75 watt bulb uses 75 watts of power per hour. The unit of power is already per hour, so there is no need to multiply by hours separately.
Wiki User
∙ 15y ago75 watts * 1 hour = 270 kilojoules (standard SI unit of energy)
However electrical energy is general measured in kilowatt*hours (kWh) which is obviously 0.075 kWh
Wiki User
∙ 14y agoPower is expressed in watts, therefore, 75 watts.
Wiki User
∙ 14y ago75 watts
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How many kwh is used by a 60 watt bulb?
A 60 watt bulb used for 1 hour consumes 0.06 kWh (60 watts * 1 hour / 1000).
How many watt hours does a 2300 watt bulb use?
2300 watt-hours for every hour it operates. Watts x Hours = watt hours.
How many kilowatt-hours do 50 w used for 12h equal?
A Kilowatt hour is 1000 watts per hour. A 50 watt bulb will use just 50 watts per hour. Therefore over 12 hours the 50 watt bulb will use 50*12 watts = 600 watts or 0.6 of a kilowatt hour.
How many kWh will a 32 watt fluorescent bulb use?
A 32-watt fluorescent bulb, when used for 1 hour, will consume 0.032 kWh (32 watts ÷ 1000). The energy consumption can be calculated by multiplying the wattage by the number of hours used.
How many horsepower are in a 100 watt light bulb - 1.3?
98.7
How many kwh is used by a 60 watt bulb?
A 60 watt bulb used for 1 hour consumes 0.06 kWh (60 watts * 1 hour / 1000).
How many watt hours does a 2300 watt bulb use?
2300 watt-hours for every hour it operates. Watts x Hours = watt hours.
How many kilowatt-hours do 50 w used for 12h equal?
A Kilowatt hour is 1000 watts per hour. A 50 watt bulb will use just 50 watts per hour. Therefore over 12 hours the 50 watt bulb will use 50*12 watts = 600 watts or 0.6 of a kilowatt hour.
How many kilo watts does a 40 watt bulb use in 1 hour?
0.04 kilowatts one kilowatt is 1000 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.
How many kWh will a 32 watt fluorescent bulb use?
A 32-watt fluorescent bulb, when used for 1 hour, will consume 0.032 kWh (32 watts ÷ 1000). The energy consumption can be calculated by multiplying the wattage by the number of hours used.
How many BTU does a 10 watt led bulb create?
About 90 percent of an incandescent bulb's energy is turned into heat; one watt is 3.41 btu/hr, so 10 watts would be about 3 btu per hour.
How much energy is used by a streetlight per hour?
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
How many watts do light-bulbs use per hour?
Your question is rather like asking, 'How many miles per hour do you do in one hour?' A watt is simply the rate at which you use energy or do work, and it is the same regardless of over what period it is measured.
Is a watt a light bulb?
A 60 watt light bulb is a light bulb with 60 watts capacity. When talking about watts, you're talking about the power that is transferred from the appliance to the accessories. Therefore, the light bulb labeled "60 watts" takes 60 watts to light up. A 60 watt light bulb will not be as bright as a 120 watt light bulb.
How many watts per hour to equal 1000 btu's?
The energy unit is not watts per hour, but watts times hour, simply called watt-hours.One BTU is equal to about 1055 Joules or Watt-seconds; that is about 0.293 watt-hours. Actually there are different definitions of the BTU.The energy unit is not watts per hour, but watts times hour, simply called watt-hours.One BTU is equal to about 1055 Joules or Watt-seconds; that is about 0.293 watt-hours. Actually there are different definitions of the BTU.The energy unit is not watts per hour, but watts times hour, simply called watt-hours.One BTU is equal to about 1055 Joules or Watt-seconds; that is about 0.293 watt-hours. Actually there are different definitions of the BTU.The energy unit is not watts per hour, but watts times hour, simply called watt-hours.One BTU is equal to about 1055 Joules or Watt-seconds; that is about 0.293 watt-hours. Actually there are different definitions of the BTU.
How much does it cost to run a 100 watt bulb per hour?
That bulb is 100 watts or 0.1 kilowatts so it uses 0.1 kilowatt-hour of energy each hour, which costs about £0.015
