MCQ
In a simple $L-R$ circuit with $A.C$. source the potential difference at any instant across inductor and resistance are $V_L$ and $V_R$ respectively and $A.C.$ souree has potential difference $V_{Ac}$ at the same instant. Then
- A$V_L^2 + V_R^2 = V_{AC}^2$
- ✓${V_L} + {V_R} = {V_{AC}}$
- C$V_L^2 - V_R^2 = V_{AC}^2$
- D$V_L^3 + V_R^3 = V_{AC}^3$
