cAN SOMEBODY PROVIDE ME WITH A SIMPLE CALCULATION?

Question

I WANT TO WORK OUT HOW MUCH ELECTRICITY WE ARE USING AT HOME FOR EACH APPLIANCE. PROVIDE THE CALCULATION THAT I DID IN PHYSICS ALL THOSE YEARS AGO THAT I HAVE FORGOT.

THANKS ALOT

Answer 1

Not easy to tell but this link will be the dogs B......

Answer 2

I think this is what you're after. Volts x Amps = Watts. Plenty of info on individual appliances at the link provided as well!

Nearly everything you can plug into the wall has a label that says how much electricity it uses. (It may be printed directly into the plastic or metal.) You may have to hunt for the label. It's often located on the bottom or side of the device, or possibly where the power cord enters the unit. If the device is powered with an AC/DC adapter, the electrical rating is usually listed on the adapter itself.

If the label only gives the number of amps and not the number of watts, then just multiply the amps by 120 to get the number of watts. (Amps x Volts = Watts, and most U.S. electricity is 120 volts. So a hot plate that uses 6 amps uses 6 x 120 = 720 watts. In England and other countries that use 240 volts instead of 120, use 240 instead of 120 in your calculations.) Note that if a device is powered by a transformer (one of those great big plugs), then the transformer has converted the electricity from AC to DC, so you need to multiply by the DC voltage, not the AC voltage of 120. For example, if the device says "INPUT 9V, 0.5A", then that's 9 volts x 0.5 amps = 4.5 watts.

Answer 3

I would start by looking at the wattage for each appliance of interest. Are you trying to calculate the power (wattage) that you are using? Wattage ratings are found directly on the appliances. Or, you could mosey out to your electric meter and jot down day-to-day changes, which would give you a pretty accurate representation.

Answer 4

You need to know the wattage ratings of the appliances and except for motors and some other inductive loads, the energy consumed is watt hours or Kilowatt hours. For appliances using motors, power factor comes into play.

Answer 5

every electrical aplyance has its poweruse on its back (usually located near the plug or on the adapter) these specifications are somewhere in the manual aswell.

youre looking for something that says: 300 W or 300 Watt.
multiply this number, by the time you keep it running upon average per month. and multiply this by the hourly price of Kilo Watt Hour (a KWH) (a KW is 1000W) (you can price get this from your powercompany)

an example:

lets say your washing machine uses 1200W. and you run it 2 times a week for about an hour and a half each time. and a KWH with your powercompany costs €2,00

3 hours a week is 12 hours per month. (3 times 4 weeks per month)
1200W is 1.2 KW (devide by 1000)

so thats:
1.2KW x 12 hours x €2,00 = €28,80 per month

Answer 6

Since 2 years of 10,000 rupees at 8 % are numbers the mathematical equation is WAY off. You need to multiply the 3 and add six to account for your fixed deposit. The quarter is only 30% of that 8% multiplied by three because of your initial principle. Hope this helped.

Answer 7

Peter+Francis+Hannon=Perfection

Answer 8

Energy = Power x Time

ie read the wattage on each item and multiply by how long you use it for. Do that for every item to get your total energy comsumption.

Answer 9

an easy way to work it out is to find out the appliance rating is for KwH or kilowatt hours. this is the amount of energy it uses in one hour. then look on your utility bill to see how much you are paying per KwH and multiply the two figures to see how much in money it cost to run for an hour. for small items like kettles or hairdriers, divide this figure by 60 to work out how much per minute then multiply it by the number of minutes you have the appliance switched on.

for example if you have an electrical heater that is 2KwH and you pay 36p per KwH it would cost 72p per hour to run it. if you leave it on for 8 hours every day it will cost you £5.76 per day which works out at £2,102.40 per year.

if you have a 1KwH kettle it will cost 36p per hour but as a kettle is only on for about 5 minutes at a time, you divide 36p by 60 then multiply it by 5 . so using the same figures it would cost 3p to boil your kettle.

things get slightly more complicated with things like fridges cos they have thermal cut outs built in, so they dont run constantly even when they are switched on. but you can use it to find out how much a tumble drier costs per hour. you can compare things like the cost of using electric paint strippers with the cost of buying chemicals.
i have no idea what the cost of electricty is so i plucked 36p out of my head, it will tell you on your bill. hope this helps.

Answer 10

Yes I can.