St. John, Thomas M. (Thomas Matthew), b. 1865 · New York, T. M. St. John · leaf 52
that a wire is carrying a iio-voltcurrent. The volt is the unit of E.M.F. An ordinarygravity cell has an E.M.F. of about one volt. Thisname was given in honor of Volta. APPARATUS FOR ELECTRICAL MEASUREMENTS. 49 … 67. Measurement of Electromotive Force. There are several ways by which the E.M.F. of a cell, for example, can be measured. It is usually measured relatively, by com-parison with the E. M. F. of some standard cell. (See Study, Exp. 140, for measuring the E. M. F. of a cell by comparison Fig. 62.…
Electricity
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