Electric Shock

Current in the body, not the voltage, is the cause of electric shock. Of course it takes voltage across the resister to produce current. When voltage is applied across the body, current starts to pass through the body. Resistance of the body is typically between 10 k ohms and 50 k ohms. Moisture, body mass and points of contacts are among some of the factors that affects body resistance. How much current is need to create electric shock? There is no solid documentation available online. The following tables show the current values and how much of electric shock each current create.

Current (mA) Physical Effect
0.4 Slight Sensation
1.1 Perception threshold
1.8 Shock, no pain, no loss of mascular control
9 Painful shock, no loss of muscular control
16 Painful shock, let go threshold
23 Sever painful shock, muscular contraction, breathing difficulty
75 Ventricular fibrillation, threshold
235 Ventricular fibrillation, usually fetal for duration of 5 seconds
4,000 Heart paralysis (no ventricular fibrillation)
5,000 Tissue burn

Source : Priciples of Electric Circuit by FLOYD, page 59

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