Daniell cell

British  

/ ˈdænjəl /

noun

1. physics a type of cell having a zinc anode in dilute sulphuric acid separated by a porous barrier from a copper cathode in copper sulphate solution. It has an emf of 1.1 volts

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Etymology

Origin of Daniell cell

C19: named after John Daniell (1790–1845), English scientist

Example Sentences

The strength of this current is not very great, a single Daniell cell being equal to nine pairs of the strongest combination yet discovered, namely, the artificial sulphuret of copper with German silver.

From The Telephone An Account of the Phenomena of Electricity, Magnetism, and Sound, as Involved in Its Action by Dolbear, A. E. (Amos Emerson)

The use of a solution of zinc sulphate to act on the zinc rod, or plate, is always to be preferred in the Daniell cell, when long duration is of more consequence than energetic action.

From Electric Bells and All About Them A Practical Book for Practical Men by Bottone, S. R.

From the time of the advent of the Daniell cell experiments in electricity were rendered comparatively easy.

From A History of Science — Volume 3 by Williams, Henry Smith

The absence of the porous pot decreases the internal resistance, but the electromotive force is the same as in the ordinary type of Daniell cell.

From Hawkins Electrical Guide, Number One Questions, Answers, & Illustrations, A Progressive Course of Study for Engineers, Electricians, Students and Those Desiring to acquire a Working Knowledge of Electricity and its Applications by Hawkins, Nehemiah

In fact, we have already seen that in the Daniell cell the current decomposes a solution of sulphate of copper and deposits the pure metal on the copper plate.

From The Story of Electricity by Munro, John