MCQ
An alternating current is given by
$I=I_{A} \sin \omega t+I_{B} \cos \omega t$.
The r.m.s. current will be :-
- A$\sqrt{I_{A}^{2}+I_{B}^{2}}$
- B$\frac{\sqrt{I_{A}^{2}+I_{B}^{2}}}{2}$
- ✓$\sqrt{\frac{\mathrm{I}_{\mathrm{A}}^{2}+\mathrm{I}_{\mathrm{B}}^{2}}{2}}$
- D$\frac{\left|I_{A}+I_{B}\right|}{\sqrt{2}}$
