The Magnetic Circuit in Theory and PracticeLongmans, 1896 - 362 páginas |
Dentro del libro
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Página xvii
... . Determination of Distribution . . 317 318 319 320 A. - Magnetometric Methods 209. Plan of the Experiments . 210. Virtual Length of the Magnet 321 323 a ARTICLE 211. Helmholtz's Method . Compensating Coil 212. Searle's Curve.
... . Determination of Distribution . . 317 318 319 320 A. - Magnetometric Methods 209. Plan of the Experiments . 210. Virtual Length of the Magnet 321 323 a ARTICLE 211. Helmholtz's Method . Compensating Coil 212. Searle's Curve.
Página 5
... length dL , conveying a current , produces at a point at a distance In ordinary language we frequently speak of magnetic force and lines of force , the latter expression being also frequently used for those curves which we shall more ...
... length dL , conveying a current , produces at a point at a distance In ordinary language we frequently speak of magnetic force and lines of force , the latter expression being also frequently used for those curves which we shall more ...
Página 7
... length of which is very great in comparison with its cross - section . If the number of turns is n , the length L , the magnetic intensity at all points sufficiently distant from the ends is ( 7 ) . 5 - 4 πn I L It is therefore ...
... length of which is very great in comparison with its cross - section . If the number of turns is n , the length L , the magnetic intensity at all points sufficiently distant from the ends is ( 7 ) . 5 - 4 πn I L It is therefore ...
Página 11
... length is 2πr1 , this current I will produce a magnetic field the intensity of which ( § 6 , equation 7 ) is given by the expression ( 9 ) H = Απη , 2 πι I 2n , I 71 It follows , further , from the principles of the induction of ...
... length is 2πr1 , this current I will produce a magnetic field the intensity of which ( § 6 , equation 7 ) is given by the expression ( 9 ) H = Απη , 2 πι I 2n , I 71 It follows , further , from the principles of the induction of ...
Página 27
... length of the bar . Near the other end the condition is the same , except that the radial field is directed inwards at the end , and is again . represented by plain arrows . The latter ( S ) is usually called the negative , and the ...
... length of the bar . Near the other end the condition is the same , except that the radial field is directed inwards at the end , and is again . represented by plain arrows . The latter ( S ) is usually called the negative , and the ...
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Términos y frases comunes
abscissæ action air-gap already analogy approximately armature axis C.G.S. units chapter circumference component conductor consider considerable constant core corresponding cross-section Crown 8vo curve of magnetisation denote determined Diagrams direction discussed distance distribution dx dy dynamo machines electric electromagnetic electromotive force end-elements equal equation experimental experiments expression external ferromagnetic body ferromagnetic substance field-magnets flux of induction funct function further galvanometer given Hopkinson hysteresis integration investigation iron lamellar latter leakage leakage-coefficient lifting force line-integral lines of induction magnetic circuit magnetic field magnetic induction magnetic intensity magnetic potential magnetic reluctance magnetomotive force Maxwell mean measure method number of turns obtained Ohm's Ohm's law ordinates permeability permeance plane pole-pieces proportional quantity question radial represented resistance resultant induction ring secondary coil self-induction Silv slit solenoidal surface theoretical theory tion toroid transformers variable vector
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