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#9v battery connector skin#

If you could construct a scenario where you could present a conductive path that includes the sinoatrial node, of resistance less than about 90Ω, to the terminals of a 9V battery, then you might have an electrocution risk. Roughly speaking, humans can feel voltage (via muscular contraction) but death comes from milliamps of current passing through the sinoatrial node near the heart. "It's the volts that jolts, but the mills that kills" Connecting a 9V battery however from hand to hand in the bloodstream is highly unlikely to kill you. While not pleasant it seems that connecting a 9V battery directly to your heart is in the danger zone but not necessarily going to kill you. This number would get close to possible heart fibrillation. The length is about 150cm+- and we use 10cm for the heart, reduce to ~20ohms.

We know the resistance hand to hand is about 300ohms.

What if you applied the battery straight on your heart?.

If I were to direct the positive and negative ends of a 9 volt battery through open wounds on either of my hands, allowing the electricity to travel through my bloodstream and presumably past my heart, would it kill me? What if I were able to let go as soon as I felt the shock?Īpplying 9V from your hand to hand directly in your bloodstream would then give 30mA DC which is highly unlikely to kill you.

The internal resistance of the body from hand to hand will be something like >300ohmĭC current is about 2-4 times less dangerous than AC current because the AC current will cause faster ventricular fibrillation which is often the cause of death from electric shock.

I wrote a new answer that will be more precise after more resarch. Artificial respiration must beĪpplied immediately if breathing has stopped. Resuscitation,Ĭonsisting of artificial respiration, will usually revive the victim.įrom a practical viewpoint, after a person is knocked out by anĮlectrical shock it is impossible to tell how much current has passed While producing severe burns and unconsciousness, do not usually causeĭeath if the victim is given immediate attention. Producing painful to severe shock, currents between 100 and 200 mA While any amount of current over 10 milliamps (0.01 amp) is capable of

Under certain conditions, transmit a fatal current. Any electrical device used on a house wiring circuit can,

The real measure of shock's intensity lies in theĪmount of current (amperes) forced though the body, and not the

But this is not so! Individuals have beenĮlectrocuted by appliances using ordinary house currents of 110 voltsĪnd by electrical apparatus in industry using as little as 42 voltsĭirect current. Offhand it would seem that a shock of 10,000 volts would be moreĭeadly than 100 volts.

#9v battery connector skin#

If the skin is broken the resistance drops significantly. Your skin has sufficient resistance that it can stop current. A 9V battery can provide much more than that. Yes, it can, it only takes 10-20mA to stop a human heart. (at least the version I heard, I'm sure there are many variants by now.) This question stems from the rumor that some navy tech wanted to test the conductivity of their body so they pushed the meter beneath their skin and got electrocuted. Once started ventricular fibrillation will often not stop without external action - usually very high magnitude electric shock - whose purpose is NOT to supply a heart start signal but to FULLY STOP the fibrillation signals so that the normal heart waveforms can re-establish. In the electrically susceptible patient, even minute amounts of current (10 μA) may cause ventricular fibrillation. This conduit can be a pacing wire or a saline-filled central venous or pulmonary artery catheter. Microshock refers to very small currents (as little as 10–50 μA) and applies only to the electrically susceptible patient, such as an individual who has an internal conduit that is in direct contact with the heart.This paper makes that statement Electrical Safety in the Operating Room: Dry Versus Wet and my recollection is that the writer has come to specialise in establishing best safety practices in that area. IF you get cause currents in the 10's of microamps range onto the actual surface of the heart death can occur.