The alternating current in a cuicuit in a cuicuit is described by the graph shown in Fig. Show rms current in this graph.

Explanation

From Fig. we find that
from t = 0 t `t = T//2`, I = 1 A form `t = T//2` to t = T, I = - 2 A
`:.` Mean square value of current over one full cycle `= (1^(2) + (-2)^(2))/(2) = 2.5`
rms current, `I_(rms) = sqrt(2.5) = 1.6 A`.
This is shown in Fig.