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Which of the following increases due to a reduction in the capacity of battery plates due to sulphation?

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in Automotive Engine Design by (137k points)
Which of the following increases due to a reduction in the capacity of battery plates due to sulphation?

(a) Pressure

(b) Internal resistance

(c) Temperature

(d) Enthalpy

This question was posed to me in an interview for internship.

The origin of the question is Battery Troubles in section Storage Batteries of Automotive Engine Design

1 Answer

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The correct option is (b) Internal resistance

Explanation: Large lead sulphate crystals, whitish in colour are formed on the plates. These crystals are difficult to be converted back into active materials on recharging. Sulphation of the battery reduces the capacity and increases the internal resistance of the cells.

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