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A car battery is of 12V. Eight dry ...

A car battery is of 12V. Eight dry cells of 1.5 V connected in series also give 12V, but such a combination is not used to start a car. Why ?

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Dry cell used in series will have high resistance ` (= 10 Omega ) ` and hence provide low current, while a car battery has low internal resistance (`0.1 Omega ` ) and hence gives high current for the same emf, needed to start the car.
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CBSE COMPLEMENTARY MATERIAL-ELECTROSTATICS AND CURRENT ELECTRICITY -NUMERICALS
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