Question

The vector diagram of current and voltage for a circuit is as shown. The components of the circuit could be

• A. $\text{LC}$
• B. $\text{CR}$
• C. $\text{LCR}$ (or) $\text{LR}$
• D. None of these

Answer 1

The correct option is C $\text{LCR}$ (or) $\text{LR}$

Given, $V$ leads $I$ by ${45}^{\circ }$

From, the phasor diagram of $\text{LCR}$ circuit, we get,


Hence, $V$ can lead $I$ in both $\text{LCR}$ and $\text{LR}$ circuits.

<!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}--> Hence, $\left(C\right)$ is the correct answer.