The root mean square value of the alternating current is equal to

Define root mean square value of an alternating current.

Define root mean square value of alternating current and derive an expression for it . How is it related to mean value of alternating current ?

What is root mean square value of alternating current? Derive a relation between peak value and virtual value of alternating current.

.What is meant by root mean square value of alternating current? Derive an expression of r .m.s value of A.C

Show that I_(rms)=(I_(0))/(sqrt(2)) , where I_(rms) is the root mean square value of alternating current and I_(0) the peak value.