Voltage and Ampere for dummies?
Could you explain to me the difference in Voltage and Ampere for electricity, and what does what exactly? I heard that its the Amp that can kill you, not the volts.
But please, no technical mumbo jumbo. Explain it in Layman's terms. I'm a phenomenal idiot, you see...
Voltage is the potential to cause current, to cause something electrical to happen. A 12 volt car battery has 12 volts of potential. Nothing happens unless that battery is connected to something, like a headlight bulb. A 120 volt household outlet has potential, but nothing happens unless you plug something into that outlet and turn it on.
Current is the flow of electrons. When you connect that battery to that headlight bulb, current flows, which causes the light to turn on.
Resistance is the ratio of the two, R = voltage divided by current. If the bulb has 4 ohms of resistance, then the current is I = E/R = 12/4 = 3 amps.
The power used by the bulb is voltage x current, in this case, 12v x 3 amps or 36 watts.
Re shock, it takes 10-20 ma of current (0.020 amp) to cause a shock and possible death. but that current is caused by a voltage, and the higher the voltage, the higher the current, and the higher it hits.
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