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What generates the potential difference across a cell's terminals?
ACoupling action
BChemical action
CCharging action
DCooling action
Answer & Solution
Correct answer: B. Chemical action
1. It works even when no current is drawn.
2. A battery holds one or more such cells.
3. It is the chemical action within the cell.
_Source: NCERT Class 10 Science, Ch 12 'Electricity'_
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