An alternating current is given by the equation i = i 1 sin ω t + i 2 cos ω t . The rms current will be:

Step-by-step solution

i = i 1 sin ω t + i 2 sin ω t + 90 i = i 1 2 + i 2 2 sin ω t + ϕ i rms = i 0 2 = i 1 2 + i 2 2 2