The electric current in a circuit is given by `i=3t`. Find the rms current for the period `t=0` to `t=1` sec.

Explanation

`i=3t, i^(2)=9t^(2)`
`i_("rms")^(2)=(int_(0)^(t)i^(2).dt)/(int_(0)^(1)dt)=(int_(0)^(t)9t^(2)dt)/(int_(0)^(1)dt)=3," "I_("rms")=sqrt3A`