220 ~V ac is more dangerous than 220 ~V dc Why?

Step-by-step solution

The voltage specified for an alternating current (ac) circuit, such as 220 ~V , refers to the root mean square (rms) value, denoted as V_ rms . The relationship between the peak value ( V₀ ) and the rms value for a sinusoidal ac voltage is given by V₀ = V_ rms 2 . Substituting the given value, V₀ = 220 2 220 1.414 311 ~V . In contrast, for a direct current (dc) source of 220 ~V , the voltage remains constant at 220 ~V at all times. Since the peak voltage of the ac supply ( 311 ~V ) is significantly higher than the