A text book of physics, for the use of students of science and engineering (1918)
Duncan, John, d. 1941, Starling, Sydney George, 1873- · London Macmillan · leaf 880
.d. between the terminals is and is equal to AC the e.m.f. of the cell. When the external sistance is infinite, the current is zero, and the cell is said to be on en circuit. Thus when the cell is on open circuit the p.d. between its rminals is equal to the e.m.f. of the cell. Thus, if E is the… … fig. 785.—Potential difference between theterminals of a cell. r + R p.d. between terminals: r + R. ER = er + eR,E — e r~e~ = R .(11) The voltage E of the cell may therefore be considered to consisttwo parts,—e, that required to maintain the current in the externalistance R, and E-e, that required…
Physics
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