Daniell cell battery with ammeter & light bulb

Daniell cell battery with ammeter & light bulb

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Credit: JERRY MASON/SCIENCE PHOTO LIBRARY

Caption: Daniell cell. Invented by the British chemist John Daniell (1790-1845), the Daniell cell is made from two half-cells whose electrolytes are separated by a porous partition. The positive electrode is copper immersed in copper sulphate solution, the negative electrode is zinc immersed in dilute sulphuric acid. When not in use, the cell must be dismantled to prevent the electrolytes diffusing into each other. The Daniell cell produces about 1.08 volts, a value virtually independent of operating temperatures.

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Keywords: battery, daniell cell, daniell type, electrical, electricity, energy, industry, physics, technology, wet cell

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