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What is Weston cadmium cell ?

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Solution

The Weston Cadmium cell is a wet-chemical cell that produces a highly stable voltage suitable as a laboratory standard for calibration of voltmeters

A primary cell used as a standard of emf, producing 1.018636 volts: consists of a mercury anode and a cadmium amalgam cathode in an electrolyte of saturated cadmium sulphate

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