An electric fence displays a warning sign about the voltage and amperage of the fence. How would amperage and voltage affect the power of the fence?

Question

zairahernandez · Answer

a high rate of energy transfer is the killer 
V = volts 
I = amps 
P = rate or energy transfer (power) 
and 
P = V * I

zairahernandez · Answer

power (watts) = amps X volts

zairahernandez · Answer

You can control the voltage, but the amperage will depend on the resistance.  For deterrence you don't need a lot of current; in fact you don't need more than a short pulse at high voltage.