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Why is ac current more dangerous …

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Why is ac current more dangerous than dc current?

Posted by Mona Malik 6 years, 6 months ago

CBSE > Class 12 > Physics

2 answers

Anush Kailash 6 years, 6 months ago

The voltage given in ac is just the rms voltage the actual volt is root2 timees the voltage...but in dc the voltage given is the same

Amar Kumar 6 years, 6 months ago

The main difference between the effects of AC and DC on the human body result from the fact that excitatory actions of the current are linked to the changes of the current magnitude especially when making and breaking the current. Excitatory actions of the current include stimulation of nerves and muscles, induction of cardiac atrial or ventricular fibrillation. To produce the same excitatory effects, the magnitude of DC flow of constant strength shall be two to four times greater than that of the AC. Ventricular Fibrillation is considered to be the main cause of death by electric shock. The probability of a human suffering from Ventricular Fibrillation is much higher in the case of AC than DC.

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