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?
Interestingly, in your example you put car battery. However CCA, or cold cranking amps is like the only thing interesting about the battery, other than physical size.
Sure, for someone in the know. Most people just know that they’re 12V (if that) and have no idea about A or Ah.