[Ronbo]

One of the first things you would learn in basic electronics is a comparison of water and electricity.

Volts (potential) would be like pressure of water.

Amps (volume) would be like volume (gallons lets say).

A 4" pipe or a 1/2" pipe, which will deliver 20 gallons faster if both are pressurized at 60 PSI? - This is current.

Which car has a better chance of jumping a ditch? The one traveling at 5mph or the one going 30mph? - This is potential.

Power is a ratio of both: A 1/2" pipe would deliver the same volume as the 4" if the pressure was 2000psi. If the car traveling 5mph weights 10lbs it would make it across the ditch. (the numers are a guess, but you get the idea)

Spark plugs don't work well at 12v @600amps, however 12,000v @.6 amps is just the ticket. The power is the same 7200 Watts. A starter is just the opposite.