Just remember this V=I*R. That is OHM's law and it is the basis for the study of circuitry. Voltage is the sum of current times resistance. or conversley current is equal to the voltage divided by the resistance. THe higher the resistance from point a to B the lower the current. I have had 120 volts flowing through me a couple times. I have a few friends who were doing it on purpose and laughing. They would put their pointer and middle finger on one hand accross the 2 connection on the side of a light switch with the switch turned off, and the bulb would light up. Then again I have heard true stories of a very sick and stupid young man who killed himself with less than 12 volts, because he lowered the amount of resistance between the contacts enough to kill himself. I survived because I have a pretty high resistance, I don't know why but when I measure the resistance through my body it is usually higher than other peoples.