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Question

Why is ac more dangerous than DC ?

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Solution

Direct current (DC), because it moves with continuous motion through a conductor, has the tendency to induce muscular tetanus quite readily. Alternating current (AC), because it alternately reverses direction of motion, provides brief moments of opportunity for an afflicted muscle to relax between alternations. Thus, from the concern of becoming "froze on the circuit," DC is more dangerous than AC.

This is because DC= 220V supply

but for AC supply, it is the root mean square value of Cuurent x 220 that is approximately 311V
Hence AC more dangerous than DC


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