ORIGINAL: BigTb17
ORIGINAL: HandyRacing
Anyone want to do the math for 120 volts at 20 amps
- compared to -
14.8 volts at 150 amps
?
What math?
Wattage (therefore total power) is higher on the 120v circuit.
120 volts at 20 amps is 2400 watts. 14.8 volts at 150 amps is 2220 watts. If you had 150 amps at 120 volts it would be 18,000 watts. This is a much higher total power level. Amperage (more accurately, resistance to its flow) is what causes heat, and therefore determines wire size. But the total power level of the 120v circuit is much higher.
I was letting you (anyone) demonstrate that folks are more or less playing with the same amount of power, be it by plugging something into an outlet (for example an electric appliance), or tinkering with an RC toy.
Thank you.