Thomälen, Adolf, 1865-, Thomälen Adolf. Kurzes Lehrbuch der Electrotechnik. English · London, E. Arnold · leaf 73
kes an angle a with the axis, then r sin a Now the element of conductor at B is perpendicular to the plane of thepaper and is therefore at right angles to the line a which lies in that plane.Putting sin 0 = I in equation (30) on page 54, we get ,j. m.r .dl m.r .dl.*/=—^2—= . sm^ a This force acts… … Fig. 49 ments of conductor constituting the coil, we find that all the componentssuch as ED, at right angles to the axis, neutralise one another, while thecomponents along the axis must be added. The total force acting on thepole m is therefore along the axis A A and has a magnitude / = 5^/. sm a =…
Electrical engineering
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