Volt: pressure
Amps: how much electricity. size of the wire would effect it
Watt=Volt x Amps so you can use it to calculate any if you are given two
Watthour=Watt x Hours use to compare battery and total bill
Adaptor vs Convertor: Adaptor only transfer what from outlet to your device with different shape of female and male, not changing electricity .
Dryer outlet: 240V 30Amps (indicated in ELectric box)
Oven outlet: 240V 50 Amps
if you ever need to replace wire of any sort. learn and make sure the wires connected to the same color wire!