A lead accumulator is used in a car because
AIt cannot be discharged repeatedly in service
BIt generates a very high voltage for ignition
CIt can deliver high current to start the engine
DIt uses solar cells to recharge itself daily
Answer & Solution
Correct answer: C. It can deliver high current to start the engine
1. The chapter notes lead accumulators give large current.
2. Car starters need a brief high current to crank the engine.
3. Hence lead accumulators are chosen for car batteries.
4. So option A is correct.
_Source: Selina Concise Physics Class 9, Ch 9 Current Electricity (Mistral OCR'd PDF), section on secondary cells_
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