Why 200 V a.c. more dangerous than 220 V d.c.?

Direction. In the follwing questions, a statement of assertion is followed by a statement of reason. While answering a question, you are required to choose the correct are out of the given four responses and mark it as (A). If both assertion and reason are true and reason is the correct explanation of the assertion, (B) if both assertion and reason are true but reason is not correct explanation of the assertion. (C) if assertion is true, but reason if false, (D) if both assertion and reason are false Assertion : An alternating voltage of 220V is more dangerous than a d.c. supply of 220 V. Reason : The peak value of 220V a.c. is about 311 V.

Which is more dangerous in use a.c. or d.c.? Explain, why?

Which is more dangerous in use :a.c or d.c. ? Explain, why

Carbon monoxide (CO) gas is more dangerous than carbon dioxide (CO_2) Why?

Do you consider passive smoking is more dangerous than active smoking ? Why ?

A man is given a shock with 220 volt d.c. and thereafter with 220 volt (r.m.s.) a.c. will he feel the same intensity of shock in the two cases? Give reasons in support of your answer.

The back e.m.f. of a d.c. motor delivering 5 kW of mechanical power is 200 v, when operating on a 220 V line. Determine the armatre current and the motor resistsance.