When a current of a 240V AC power passes through the body, it is almost certain that death will occur. A 240 V AC mains supply creates a 0.025 amp current through the human body, and gets passes along the central nervous system until it reaches the heart, where the current causes the heart to contract violently make breathing difficult. A current as little as 0.02 amps causes the respiratory muscles to malfunction and breathing stops, also known as the fibrillation process.
However, on a higher frequency, the AC current will burn the human body rather than causing death. The current will stop fibrillation process and rather burn when the frequency is tuned to around 40 kilohertz.
The difference between an AC electric shock to a DC electrical shock is that while the AC shock is more likely to throw you off and make you convulse, a DC charge will make your muscles cramp up and make you hang onto the object you are holding, called the ‘let go threshold,’ A DC current will cause a continuous contraction of muscles whereas an AC current produces contractions based on the cycles. The higher the DC voltage, the greater the chance of death occurring.
Going to the equation of Voltage(V) = Resistance(I)*Current(R), it ultimately comes down to the level of resistance that each individual has, which differs, to really calculate the damages and dangers that can be caused by an electric shock. When comparing AC to DC electric shocks, it can be said that they are equally dangerous, and is only differed by the degree of voltage.
However, on a higher frequency, the AC current will burn the human body rather than causing death. The current will stop fibrillation process and rather burn when the frequency is tuned to around 40 kilohertz.
The difference between an AC electric shock to a DC electrical shock is that while the AC shock is more likely to throw you off and make you convulse, a DC charge will make your muscles cramp up and make you hang onto the object you are holding, called the ‘let go threshold,’ A DC current will cause a continuous contraction of muscles whereas an AC current produces contractions based on the cycles. The higher the DC voltage, the greater the chance of death occurring.
Going to the equation of Voltage(V) = Resistance(I)*Current(R), it ultimately comes down to the level of resistance that each individual has, which differs, to really calculate the damages and dangers that can be caused by an electric shock. When comparing AC to DC electric shocks, it can be said that they are equally dangerous, and is only differed by the degree of voltage.
For more information visit http://hyperphysics.phy-astr.gsu.edu/hbase/electric/shock.html