. The elements of physiological physics: an outline of the elementary facts, principles, and methods of physics; and their applications in physiology. Biophysics. 32 PHYSIOLOGICAL PHYSICS. [Chap. in. given, then n — — 20, that is, 5?^ = 20m ; there- w fore n — 4m. That is, the number of groups is equal to four times the number of cells in each group. But there are thirty-six cells in all, or the number of groups multiplied by the number of cells in each group = 36, n x m = 36. But, as shown, n = 4m, therefore 4m X m •• 36, or 4m2 = 36, therefore m2 = 9, m = 3, and n = 4m, 12. Th
. The elements of physiological physics: an outline of the elementary facts, principles, and methods of physics; and their applications in physiology. Biophysics. 32 PHYSIOLOGICAL PHYSICS. [Chap. in. given, then n — — 20, that is, 5?^ = 20m ; there- w fore n — 4m. That is, the number of groups is equal to four times the number of cells in each group. But there are thirty-six cells in all, or the number of groups multiplied by the number of cells in each group = 36, n x m = 36. But, as shown, n = 4m, therefore 4m X m •• 36, or 4m2 = 36, therefore m2 = 9, m = 3, and n = 4m, 12. Therefore, to get the strongest current the number of groups (?i) should be 12, and the number of cells (m) in each group should be three. (Fig. 17 shows on one side six cells arranged in two series, and on the other the same number arranged in three series.) Divided eircinifs.—In Fi<r. 18 C* there is shown a main circuit, from which at the point A two secondary circuits arise to join tne main I"16 in Groups. again at B. Now the electricity flowing along from P will divide at the point A, part will continue along the straight course to B, and part will pass by r2 and rs. The currents flow- ing in r2 rs are called the " derived " currents, A and B being the " points of ; Supposing the wires rl r2 and rs to be of the same material, length, and cross-section, then they would offer precisely the same amount of resistance to the passage of the cur- rent. The result would be that the same amount of cur- rent would flow along the three wires, but that the total quantity of current flowing between A and B would be greater than if there had been only a single wire rl be- tween A and B. If, however, for r} a wire of the same length, but treble its thickness, were substituted, then the intensity would be the same as passes by the three wires. In other words, the presence of the three wires. Please note that these images are extracted from s
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