Next, lets compute current using Ohm's lawI = U/R, With know current current we can compute work usingP = U * Iand store it injoulesvariable, Last step is to change joules to Watt hours. If instead of Watt hours we want Ampere hours, there is no need to count joules. Instead of...
First, you need to find the ampere-hour rating of the battery, when new. Then, knowing the current drain, you can arrive at a figure for the time the battery will last while delivering that current. There are many associated provisos, but that's a start. Feb 9, 2012...
ENIAC was demonstrated to the public on Feb. 14, 1946. It was a huge success. The New York Times reported "an amazing machine which applies electronic speeds for the first time to mathematical tasks hitherto too difficult and cumbersome for solution.. . . Leaders who saw the device in acti...