Write any two factors on which internal resistance of a cell depend...

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Write any two factors on which internal resistance of a cell depends. The reading on a high resistance voltmeter, when a cell is connected across it, it \( 2.2 \mathrm{~V} \). When the terminals of the cell are also connected
\( \mathrm{P} \) to a resistance of \( 5 \Omega \) as shown in the figure, the voltmeter reading drops to \( 1.8 \mathrm{~V} \). Find the internal resistance of the cell.
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