Fig. 5. having -^— for radius, cuts perpendicularly each of the inflectedcurves, except the one given.by & = t^ which it cuts through tlie double points at angles of ± tan^-^-j- • Radius of Circle =a. … a Fig. 6. XXXII.] ExampUs of Lines of Force. 491 Of the exflected curves (fig. 3), that given by 5 = 0 consistsof a circle of radius a, having its centre at the origin, togetherwith the parts of the axis of x external to that circle, eachdoubled; or the same circle, together with the part of the…
Electricity · Magnetism
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