O-LevelPhysicsElectricity5054/11 · May/June 2017 · Q371 Mark
Why are batteries sometimes made from several identical cells arranged in parallel?
AThe battery has a greater e.m.f. than a single cell on its own.
BThe battery has a lower e.m.f. than a single cell on its own.
CThe battery lasts longer than a single cell on its own.
DThe battery supplies a smaller current than a single cell on its own.
✓ Correct answer
C: The battery lasts longer than a single cell on its own.
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