Friday, June 6, 2008

How Much Electricity Can You Take?


Once again, we run into Ohm’s Law of electrical resistance. In the case of a shock or
an electrocution, the amount of current zapping its way through the body is determined
by the following formula:

I = E/R
I = Electrical current
E = Voltage
R = Resistance of the body

Every body offers a different degree of resistance, but that doesn’t mean you want to challenge the averages. The National Electric Code (NEC) figures five milliamps to be the safe upper limit of exposure for children and adults. Even at this level, you still can be injured by your reaction to the shock such as jumping back and tripping over the rim of a bathtub.

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