Hertz, Heinrich, 1857-1894, Jones, Daniel Evan, b. 1863, Schott, George Adolphus, 1868- tr · London: Macmillan, New York, Macmillan and co. · leaf 160
Fig. 15 a.—Rotating copper sphere, 50 turns a second, § nat. size. … Fig. 15 6.—Rotating iron sphere, five turns a second, § nat. size. 124 INDUCTION IN ROTATING SPHERES and hence the heat generated is (§ 6) 27rE5 TW W = 15 K If F be the moment of inertia of the sphere, wq its velocityat time ^ = 0, and if it rotate under no external forces, theequation of its…
Electricity · Physics
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