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.
1000 kVa is equal to 1,000,000 watts divided by 50 watts equals 20,000 light bulbs.
1000 Watts is one kilowatt - no matter how long you run it. Watt and kilowatt are units of power, not of energy.
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.
kilowatts
I kW = 1000 W 100 / 1000 = 0.1 So a 100 W bulb uses 0.1 kW For one hour that's 0.1 kWh
Energy-saving bulbs use much less than 1 kilowatt and most of them use less than 40 watts which is 0.04 kilowatts. A 20 watt bulb uses 1 kilowatt-hour of energy if run for 50 hours.
First let us convert the power of the bulb into kilowatts.A kilowatt is 1000 watts. We have one tenth of that. So 100W = 0.1kWTo work out the kilowatt hours we simply multiply the power in kilowatts by the time the bulb is on for (in hours):0.1kW x 10h = 1 kWha 100 watt bulb uses 100 watts of power. In ten hours it uses 100x10 watt-hours, or 1 kilowatt-hour. A kilowatt-hour is also called a unit, and units are what you pay for.
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.
Convert the 100 watts to kilowatts. Calculate the total time in hours, and multiply by the number of kilowatts that the light bulb uses.
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
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.
0.04 kilowatts one kilowatt is 1000 watts
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
kilowatts
Add up all the individual watts, convert everything to kilowatts, then multiply by the number of hours.
Kilowatts are used in electrical measurement because they are a conven1ent size (1 kW will power a 100 watt bulb for 10 hours) and the next logical or common unit is the megaatt which is 1000 times bigger. As to why they measure them, it is th basis of the billing for power - so many cents (5 to 10) for a kilowatt-hour or kWH.
I kW = 1000 W 100 / 1000 = 0.1 So a 100 W bulb uses 0.1 kW For one hour that's 0.1 kWh
Energy-saving bulbs use much less than 1 kilowatt and most of them use less than 40 watts which is 0.04 kilowatts. A 20 watt bulb uses 1 kilowatt-hour of energy if run for 50 hours.
"A standard light bulb I would consider to be a 60 watt light bulb, and kilowatts are the amount of usage in a light bulb. From my research I have found that a standard 60 watt light bulb uses approximately 1.44 Kilowatts per hour."