Volts, Amps, and Watts Explained

Transcript

so when you get your home energy bill it lists the usage in kilowatt hours but when you go to the store you'll see things like 12 watt light bulbs 9 volt batteries and vacuum cleaners with 15 amps of sucking power but what do these numbers even mean i mean why do we have so many different units to measure something that seems as straightforward as ... Read More