Principles of Electricity and Electromagnetism |
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Page 26
... rotation . For various special purposes it is frequently desirable to have the capacity vary in some other manner as the plates are rotated . As an example , when dealing with resonant circuits ( Sec . 13.2 ) , a linear dependence of ...
... rotation . For various special purposes it is frequently desirable to have the capacity vary in some other manner as the plates are rotated . As an example , when dealing with resonant circuits ( Sec . 13.2 ) , a linear dependence of ...
Page 384
... rotating machinery and the natural introduction of a periodic time which is related to the period of rotation . Except in the case of the homopolar generator ( in which the magnetic induction is parallel to the axis of rotation ) , the ...
... rotating machinery and the natural introduction of a periodic time which is related to the period of rotation . Except in the case of the homopolar generator ( in which the magnetic induction is parallel to the axis of rotation ) , the ...
Page 394
... rotation ( by Lenz's law ) , the armature reaction is in the opposite direction and the brushes must be shifted oppositely to the rotation to avoid sparking . = Consider the ordinary type of drum armature machine that was discussed at ...
... rotation ( by Lenz's law ) , the armature reaction is in the opposite direction and the brushes must be shifted oppositely to the rotation to avoid sparking . = Consider the ordinary type of drum armature machine that was discussed at ...
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alternating current alternating-current ampere amplifier amplitude angle angular anode antenna applied approximately armature assumed atom axis calculated capacity cathode cell characteristic charge circuit coefficient coil component condenser conducting conductor considered constant curl current flowing curve deflection density determined dielectric dielectric constant direct-current direction discharge effective electric field electromagnetic electromotive force electrons electrostatic element energy equal equation flux force frequency function galvanometer given grad grid hence impedance induction integral ions known Laplace's equation length linear load magnetic field magnetic moment magnitude maximum measured metal meter negative obtained ohms oscillations output parallel phase plate positive potential difference potential wave potentiometer produced proportional quantities R₁ radiation radius ratio reactance region represents resistance resonant rotation shown in Fig solenoid solution surface temperature terminals theorem torque tube unit V₁ vector velocity voltage volts wire written zero