1.
In an AC circuit, the instantaneous voltage and current are given by e(t)=5[cos⁡ωt+3sin⁡ωt]e(t) = 5[\cos\omega t + \sqrt{3}\sin\omega t] V and i(t)=5sin⁡(ωt+π/4)i(t) = 5\sin(\omega t + \pi/4) A respectively. Then: