The four-terminal conductor and the Thomson bridge (1912)
Wenner, Frank · National Bureau of Standards · leaf 11
hand mem-bers of these equations and subtracting gives J(fc)Js-f((pi)Js=f(ylrf7C - <pri)&v + f(cp-ir-ir<P)&v- (5) In regard to the surface integrals, the current density c is zeroeverywhere except on 2 and 3 while i/r is zero on 3 and constant on 2.The integration of cn over the… … ■S y Fig. 2 The value of the right-hand mem-ber of equation (5) will dependupon a number of conditions or set of conditions, of which we willconsider four special cases. In each case we shall consider thatthe resistance is definite, and that the conductor is free frominternal sources of current.…
Measurements and use of instruments · Electricity and magnetism · Condensed matter · Electronic structure, electrical, magnetic, and optical properties
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