guys this is probably a very easy question for people doing engineering or physics or even for people in the school!
so let's say I know a work done of (say heat pump).. how do i calculate the cost of electricity (say 1 hour) for the device being operated?
Most Helpful Guy
it comes down to wattage the formula is W=VI or wattage equals voltage times amperage. In the US the wall voltage is fixed at 120 V so the question is amperage or "draw" there are meters that are designed to calculate this for you, without a meter it get's much more complicated, so we won't even go there. After you calculate wattage, then just google cost per amp hour for your electrical provider, and multiply that out. That would give you your total cost.0