The Magnetic Circuit in Theory and Practice

abscissæ action air-gap already alternating current angle approximation armature axis C.G.S. units chapter circular closed component conductor considerable considered constant core corresponding cross-section curve of magnetisation demagnetising factor denote determined direction discussed distance dx dy dynamo electric electromagnetic electromotive force end-elements equal equation experimental experiments expression external ferromagnetic body ferromagnetic substance flux of induction function further galvanometer given Hopkinson hysteresis integration investigation iron lamellar latter leakage lifting force line-integral lines of induction machines magnetic circuit magnetic field magnetic induction magnetic intensity magnetic potential magnetic reluctance magnetomotive force means measure method normal number of turns obtained Ohm's law ordinates permeability permeance plane pole-pieces proportional quantity question radial represented resultant induction rigid magnet ring secondary coil self-induction Silv slit solenoidal surface T)-curve theoretical theory tion toroid transformers tubes uniform variable vector