Question:
Why does mercury cell give a constant voltage throughout its life?
Why does mercury cell give a constant voltage throughout its life?
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Mercury cells are used in watches and hearing aids for their steady voltage output.
Updated On: Jul 8, 2025
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Solution and Explanation
Step 1: In a mercury cell, the overall cell reaction involves solid reactants and products, which maintain constant concentrations during use.
Step 2: Hence, the cell potential (EMF) remains nearly constant throughout the life of the cell.
Step 2: Hence, the cell potential (EMF) remains nearly constant throughout the life of the cell.
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