Addyman, Frank Thornton · London : Scott, Greenwood & co. · leaf 75
lation between current, electro-motive force and resistance, known as Ohms law, and ex-plained on page 25, is usually expressed by the formula C = =. The electro-motive force is dependent on the materials ofthe cell, but the resistance is a quantity which decreases withthe area of the plates and… … Fig. 14.—Bunsen Cell. zinc needs careful amalgamation, and when working shouldbe in cold sulphuric acid made up of 5 to 7 parts of watermixed with 1 part of strong acid.1 If this acid effervesces inthe cell, the zincs have not been properly amalgamated. The nitric acid should be strong, and may be…
X-rays
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