Electrical machinery; a practical study course on installation, operation and maintenance (1921)
Annett, Fred Anzley · New York [etc.] McGraw-Hill book company · leaf 409
s is a condition similarto what would have been the case if magnet A, Fig. 455, hadbeen taken from the left-hand side of the B magnet and placedon the right-hand side as in Pig. 459. Again the center ofthe magnetic field has shifted, this time from the center of theB polepiece to between B and A… … FiQ. 458 FiQ. 459 Fig. 458.—Shows magnetic conditions in Fig. 456.Fig. 459.—Shows magnetic conditions in Fig. 457. has decreased to zero, and that in pha.se A has reached a maxi-mum value. This is a condition similar to that existing atinstant a, excepting that the direction of the current in…
Electric machinery
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