An array is a special variable, which can hold more than one value at a time. If you have a list of items (a list of car names, for example), storing the cars in single variables could look like this:
milliamps or watt/volt. The SI base unit for electric current is the ampere. 1 ampere is equal to 1000 milliamps, or 1 watt/volt. Note that rounding errors may occur, so always check the results. Use this page to learn how to convert between milliamperes and watts/volt. Type in your own numbers in the form to convert the units!
A watt is a unit of power that measures the rate of energy transfer or usage. A kilowatt is equal to 1,000 watts. A kilowatt hour is the amount of electricity used. To calculate the amount an appliance uses in kilowatt hours, take its wattage, multiply it by the number of hours you use it, and divide by 1,000.If you take a 100-watt light bulb and use it for 540 hours, the light bulb will use 54 kWh of electricity.f you look at your power bill, you will see your monthly kilowatt hour usage. This is how much electricity you used for that month and were charged for. Normally your power company will bill you based on a rate per kWh. Sometimes this rate varies depending on the time of day or your usage.