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bimbim
- 9
- 0
Understanding the amount of 'power' in Watts to kill a human. It is said that around 20ma is enough to kill. So I would have thought it does not matter about the voltage as long as 20ma is passing through the heart. obviously it would require different voltages depending of the resistance between the 2 contacts through the body. I've heard that 12 can be enough to cause a metallic taste in the mouth and dizziness. This would perhaps require the body to be very wet and a large area of it to be touching the contacts-perhaps leaning over a car bonnet without a shirt (Earth) and tightly gripping a positive connection to the battery. Basing my question on the 240v ac shock and that no more than 20 ma does pass through the heart do we just use Ohms law to work out the power used? W=VI This would give 240 x 0.02= about 5 watts. If this is near the truth what really puzzles me is if a circuit was set up so that a poor human volunteer was to encounter a huge voltage with a current limiter of 10ma max. Sounds like he would be spared his life due to the low current. What about 10ma at 1,000,000 volts! this sounds like 1000 watts to me. This is what I don't get. Any ideas! Thanks, Al