When a cell is connected in a circuit, a current \( \mathrm{I}_{1} ...

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When a cell is connected in a circuit, a current \( \mathrm{I}_{1} \) flows in the circuit. When one more identical cell is connected in series with the first one, a current \( \mathrm{I}_{2} \) is found to flow in the circuit. When same cell is connected in parallel with the first one, the current is found to be \( \mathrm{I}_{3} \). Show that \( 3 \mathrm{I}_{2} \mathrm{I}_{3}=2 \mathrm{I}_{1}\left(\mathrm{I}_{2}+\mathrm{I}_{3}\right) \).
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