Why AC is more dangerous than DC?

Answer 1

ANSWER:- Kouwenhoven's factors: AC changes direction frequently; it is the current usually supplied by household electrical outlets in the US and Europe. DC flows in the same direction constantly; it is the current supplied by batteries. Defibrillators and cardioverters usually deliver DC current. How AC affects the body depends largely on frequency. Low-frequency (50- to 60-Hz) AC is used in US (60 Hz) and European (50 Hz) households; it can be more dangerous than high-frequency AC and is 3 to 5 times more dangerous than DC of the same voltage and amperage. Low-frequency AC produces extended muscle contraction (tetany), which may freeze the hand to the current's source, prolonging exposure. DC is most likely to cause a single convulsive contraction, which often forces the victim away from the current's source.

As per IEEE std. 80 as well.....

let go current is 16mA for AC and 75mA for DC....

So there is nothing like AC will throw you off and DC will hold you off....

Question itself wrong....

Answer 2

Because your body use weak changing electrical signals to control the muscles. When you push a much stronger changing electrical signal through it everything else fails, breathing, heartbeat etc. DC at a high enough voltage is dangerous too, but is less likely to stop your heart than AC.

Answer 3

this has more to do with the voltage than anything. a 100VDC source will give a shock just like a 100VAC source. 12VAC is unlikely to give a significant shock as 12VDC is unlikely to give a significant shock.

Warning, when DC does shock it is more hazardous as your muscles lock. With AC shocks your muscles release as voltage passes through zero.

Answer 4

Actually the opposite is true. The heart is far less likely to be hit by DC and the body usually jumps BACK from the DC source. Also many tests have been done including actual execution(s) in which DC was used. It had taken much longer for the subject to die and the scene was horrible beyond reprieve. AC causes much more disruption to the heart and other organs in short amount of time. Plus AC disrupts both sets of the circuit as with DC is only one. DC causes damage mainly to the areas at or near the connections as AC does so through out the entire subject.

Answer 5

In some ways dc is more dangerous.

Answer 6

DC