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| Q. |
The acid used in lead storage cells is – |
| A. | phosphoric acid |
| B. | hydrochloric acid |
| C. | nitric acid |
| D. | sulphuric acid |
| Answer» D. sulphuric acid | |
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Explanation: Lead-acid batteries, invented in 1859 by French physicist Gaston Plante, are the oldest type of rechargeable battery. Despite having a very low energy-to-weight ratio and a low energy-to-volume ratio, their ability to supply high surge currents means that the cells maintain a relatively large powerto-weight ratio.These features, along with their low cost, make them attractive for use in motor vehicles to provide the high current required by automobile starter motors. |
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