Lessons in practical electricity; principles, experiments, and arithmetical problems; over four hundred illustrations; an elementary text book (1909)
Swoope, C. Walton (Coates Walton), d. 1901 · New York, D. Van Nostrand company · leaf 275
By Formula (91) D = AJ£J? = 1QQ XQ900 = 900 ohms. Prob. 108 : What is the value of an unknown resistance measuredby the slide wire bridge when A = 1 ohm, B = 900 divisions, C =100 divisions. By Formula (91) D = A ^ C = 1 ^q00 = .11 ohm. Problems 107 and 108 illustrate about the range of the bridge… … MEASUREMENT OF RESISTANCE. irji 250. Students Wheatstone Bridge (Lozenge Pattern).— The Wheatstone bridge is based upon the same principle ofbalancing potentials in a divided circuit as explained in ^j 248.In Fig. 230 a simple diagram of the circuit is given. A,B, C, and D arc called the arms of…
Electricity · Magnetism
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