£10,234 to be exact.
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1,123,123,123,211,125,125,125,123,123,123,114yes i do
There is no need for the value of 220 volts. Energy E = P · t = 1000 watts times 2 hours = 2 kWh = 7200 kJ 1 kWh = 3 600 000 J = 3 600 kJ For more, look here. Scroll down to related links and look at "Energy Converter".
How much electrical energy does the average American require per day ? How much electrical energy does the average American require per day ?
You can build one for the cost of a motor, PVC pipe, rollers, belt, some wire and a couple stainless steel salad bowls...That could be around $30. See the link for one person's DIY Van de Graaf. You can buy one from Edmund Scientific for $500