To determine the resistance $(R)$ of a wire, a circuit is designed below. The $V-I$ characteristic curve for this circuit is plotted for the voltmeter and the ammeter readings as shown in figure. The value of $R$ is ______ $\Omega$.

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Aicharya · Accepted Answer

$\begin{aligned} & 	ext { Req }=\frac{10^4 R}{10^4+R} \ & E=4 V, I=2 m A \ & I=\frac{E}{R e q} \Rightarrow 2 	imes 10^{-3}=\frac{4\left(10^4+Right)}{10^4 R} \ & \Rightarrow 20 R=40000+4 R\end{aligned}$ $\begin{aligned} & 16 R=40000 \ & R=2500 \Omega\end{aligned}$

To determine the resistance $(R)$ of a wire, a circuit is designed below. The $V-I$ characteristic curve for…

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