Thomälen, Adolf, 1865-, Thomälen Adolf. Kurzes Lehrbuch der Electrotechnik. English · London, E. Arnold · leaf 85
^:>^ 2-5cm, and the distance ;,j between the adjacent pole-shoes 6-5 cm.The cross-section of the leakagepath between the pole-shoes is,therefore, 30.2-5 = 75 sq. cm.Now, the lines of force pass fromFig- 6i the north pole to thesouth pole on each side of it, so that thetotal cross-section is… … Ai,= 150 + 300 ■■ 225 sq. cm. Putting these values of li^ and Ai^ in equation (49) on page 66, andremembering that /x for air is i, we get for the leakage from the pole-shoe O, 0-47r . 6200 6:1225 = 0-27. 10® lines. The fundamental formula H ■■result. 0-47r .I.T would have led to the same To this…
Electrical engineering
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