question_answer

The mean value of an A.C. signal of amplitude \[{{E}_{0}}\] and frequency 50 Hz is:

A)  zero           

B)                         \[\frac{{{E}_{0}}}{2}\]

C)  \[{{E}_{0}}\sqrt{2}\]                      

D)         \[\frac{{{E}_{0}}}{\sqrt{2}}\]