0
There is no such thing as 'power consumption', so a lamp cannot consume any kilowatts over any period of time.
It is energy that is consumed; power is simply the rate at which energy is consumed. Energy consumption is measured in joules or, by electricity companies, in kilowatt hours (not kilowatts per hour!).
So, a 1000-W lamp will consume 1 kW.h over the period of one hour.
You can think of 'power' being equivalent to speed (kilometres per hour) and 'energy' being equivalent to distance travelled (kilometres). You would never ask, "How far can a car travel in kilometres per hour'.
Since an incandescent bulb is a resistive load, with a power factor of 1.0, a 1000 watt (1 KW) bulb will pull 1000 volt-amps (1 KVA).
KVA is related to KW by power factor (PF) with the equation...
KW = (PF)(KVA)
...where PF is the cosine of the phase angle between voltage and current. Again, for the bulb, PF is 1.0. For a typical motor, which is an inductive load, PF ranges in value, with one typical value being 0.92, corresponding to a phase angle of -23 degrees.
To convert watts to kilowatts, divide by 1000. 1000 watt bulb running for 20 hours equals 20 kWh (kilowatt-hours), as you need to multiply the power in kilowatts by the time in hours.
1000 kVa is equal to 1,000,000 watts divided by 50 watts equals 20,000 light bulbs.
Add your answer:
Earn +20 pts
How many kilowatt hours KWh are used to light a 30 watt light bulb in 8?
To calculate the kilowatt hours (kWh) used by a 30 watt light bulb in 8 hours, we first convert the power to kilowatts: 30 watts = 0.03 kilowatts. Then, multiply this by the time in hours: 0.03 kW * 8 hours = 0.24 kWh. So, 0.24 kWh are used to light a 30 watt light bulb in 8 hours.
How many kilowatt hours does a 25 watt fluorescent light bulb use in 24 hours?
25*24/1000 or: first convert wattage to kilowatts (25/1000) = .025 Kw then multiply by hours 24hrs X .025Kw = 0.6 Kwh about 6 cents/day see what wattage on your TV is.
How many kilwatt hours does a 600 watt light bulb use in 18 hours?
A 600 watt light bulb uses 0.6 kilowatts per hour. In 18 hours, it would use 10.8 kilowatt hours (0.6 kilowatts x 18 hours).
How much does it cost to run a 1000 watt light bulb in 12 hours?
To calculate the cost of running a 1000 watt light bulb for 12 hours, first convert the wattage to kilowatts (1000 watts = 1 kilowatt). Then, multiply the kilowatts (1) by the hours (12) to get 12 kilowatt-hours (kWh). Finally, multiply the kWh by the cost of electricity per kWh in your area to find the total cost.
How much does it cost me to burn a 25 watt light bulb for 24 hours a cost of 0.085156 per kwh?
To calculate the cost, you need to first convert the wattage to kilowatts by dividing 25 watts by 1000 (since 1 kilowatt = 1000 watts), which equals 0.025 kW. Next, multiply the kilowatts (0.025 kW) by the number of hours the light bulb is on (24 hours) to get 0.6 kWh. Finally, multiply this by the cost per kWh ($0.085156) to get the total cost, which is approximately $0.0511.
What is the consumption of units for 60W bulb for 6 hours?
Convert the watts to kilowatts (divide watts by 1000), and multiply the result by the number of hours. Answer is in kWh, the unit used by the electrical companies for billing.
If a 100 w light bulb is lit for 8 hours each day for W days in a month many kilowatt-hours will the bulb consume?
Convert the 100 watts to kilowatts. Calculate the total time in hours, and multiply by the number of kilowatts that the light bulb uses.
How many kilowatts does a light bulb use?
Thsi depends on the light bulb specification. For example if you buy a standard 60W light bulb from your supmarket then this will consume 0.06kilowatts. Its simple just divide the wattage stated on the light bulb by 1000 to give you the kilowatts
How many kilowatt hours KWh are used to light a 30 watt light bulb in 8?
To calculate the kilowatt hours (kWh) used by a 30 watt light bulb in 8 hours, we first convert the power to kilowatts: 30 watts = 0.03 kilowatts. Then, multiply this by the time in hours: 0.03 kW * 8 hours = 0.24 kWh. So, 0.24 kWh are used to light a 30 watt light bulb in 8 hours.
How many kilowatt hours does a 25 watt fluorescent light bulb use in 24 hours?
25*24/1000 or: first convert wattage to kilowatts (25/1000) = .025 Kw then multiply by hours 24hrs X .025Kw = 0.6 Kwh about 6 cents/day see what wattage on your TV is.
How many kilwatt hours does a 600 watt light bulb use in 18 hours?
A 600 watt light bulb uses 0.6 kilowatts per hour. In 18 hours, it would use 10.8 kilowatt hours (0.6 kilowatts x 18 hours).
How much does it cost to run a 1000 watt light bulb in 12 hours?
To calculate the cost of running a 1000 watt light bulb for 12 hours, first convert the wattage to kilowatts (1000 watts = 1 kilowatt). Then, multiply the kilowatts (1) by the hours (12) to get 12 kilowatt-hours (kWh). Finally, multiply the kWh by the cost of electricity per kWh in your area to find the total cost.
How much does it cost me to burn a 25 watt light bulb for 24 hours a cost of 0.085156 per kwh?
To calculate the cost, you need to first convert the wattage to kilowatts by dividing 25 watts by 1000 (since 1 kilowatt = 1000 watts), which equals 0.025 kW. Next, multiply the kilowatts (0.025 kW) by the number of hours the light bulb is on (24 hours) to get 0.6 kWh. Finally, multiply this by the cost per kWh ($0.085156) to get the total cost, which is approximately $0.0511.
How many kilo watts does a 40 watt bulb use in 1 hour?
0.04 kilowatts one kilowatt is 1000 watts
How do you calculate lighting lpoad?
To calculate lighting load, you need to determine the total wattage of all the lights in the space. This is usually done by adding up the wattage of each light fixture or bulb. You can then convert this total wattage to kilowatts by dividing by 1000. Finally, multiply the total kilowatts by the number of hours the lights are on each day to calculate the daily lighting load in kilowatt-hours.
How much energy does 60 watt bulb consume if it burns for 28 hours?
To calculate the energy consumed by a 60 watt bulb burning for 28 hours, you can use the formula: Energy (kWh) = Power (kW) × Time (h). Convert the power from watts to kilowatts by dividing by 1000 (60 watts = 0.06 kW). Then multiply by the time in hours (0.06 kW × 28 hours) to get the energy consumed in kilowatt-hours. In this case, the bulb would consume 1.68 kWh of energy.
A 100 watt light bulb left on for 24hrs how many kilowatts does it draw in a thirty day period?
1 kilowatt is equal to 1,000 watts, so a 100 watt bulb uses .1 kilowatt. Technically, your home or business meter base measures kilowatt hours, meaning that it measures both the kilowatts and the amount of time. If you turn on 10 100 watt bulbs for 1 second, that would be a kilowatt, but the amount of power use would be insignificant. So... To calculate the kilowatt hours: .1 kilowatts (from above, knowing the energy use of the bulb) Multiplied by 24 hours in a day Multiplied by 30 days... .1(kilowatts) * 24(hours)* 30(hours in a day) = 72 kilowatt hours
