Q152 / 160 · TS EAMCET 2024 (11 May Shift 1) · Physics

An inductor and a resistor are connected in series to an ac source f 10 V . If the potential difference across the inductor is 6 V , then the potential difference across the resistor is

  • A
    4 V
  • B
    10 V
  • C
    6 V
  • Correct answer
    D
    8 V

Solution

In LR circuit $\begin{aligned} & \mathrm{V}=10 \mathrm{~V}, \mathrm{~V}_2=6 \mathrm{~V} \\ & \therefore \quad \mathrm{~V}^2=\mathrm{V}_{\mathrm{L}}^2+\mathrm{V}_{\mathrm{R}}^2 \Rightarrow \mathrm{~V}_{\mathrm{R}}^2=(10)^2-(6)^2 \therefore \mathrm{~V}_{\mathrm{R}}=8 \mathrm{~V} \end{aligned}$

Hence, the correct answer is option: 'D'.

Relevant Questions