Why is it that we use voltages and watts more often than amperages? 9v batteries, 12v car battery, 1000W Microwave oven. But amperages not so much, even though its “half” of what makes power, A*V=W. What property of amperes makes it so “unnecessary” to be aware of?
Bonus: how many amps and volts does a typical 1000W microwave use?


I don’t have an answer but this video explains a lot of this stuff in a really good way:
https://youtu.be/X_crwFuPht4
Also:
220v: 4.5A
110v: 9A