To verify Ohm's law, a student connects the voltmeter across the battery as, shown in the figure. The measured voltage is plotted as a function of the current, and the following graph is obtained If \(V_0\) is almost zero, identify the correct statement

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Answer & Solution

Correct Answer

(C) The \(emf\) of the battery is \(1.5\, V\) and its internal resistance is \(1.5\,\Omega \)

Step-by-step Solution

Detailed explanation

\(V=E-I r\)

When \(V=V_{0}=0 \Rightarrow 0=E-I r\)

\( \therefore\) \(E=r\)

When \(1=0, V=E=1.5 \,\mathrm{V}\)

\(\therefore r=1.5\, \Omega\)

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