Principles of Electricity and Electromagnetism |
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Page 460
... Resonant Air - core Transformer . - At frequencies above the audio range , losses associated with the core become so important that 2.0 1.8 15 . C Гр V Lpn V 1.6 1.4 1.2 ri LI Гр rs / n2 n2 ( Cs + C ) nV Q = 1.5 Q2 = 1.5 1.0 0.8 20 Q ...
... Resonant Air - core Transformer . - At frequencies above the audio range , losses associated with the core become so important that 2.0 1.8 15 . C Гр V Lpn V 1.6 1.4 1.2 ri LI Гр rs / n2 n2 ( Cs + C ) nV Q = 1.5 Q2 = 1.5 1.0 0.8 20 Q ...
Page 510
... resonant circuit which presents a low resistance for the resonant frequency is of the type to induce instability and generate oscillations of approximately the resonant frequency . Whereas for the type b characteristic the external ...
... resonant circuit which presents a low resistance for the resonant frequency is of the type to induce instability and generate oscillations of approximately the resonant frequency . Whereas for the type b characteristic the external ...
Page 513
... resonant circuit can be made to oscillate strongly in the region of audio frequencies . The pulsations of the arc itself which are induced by the varying current make the arc act as an acoustic source and the frequency of oscillation ...
... resonant circuit can be made to oscillate strongly in the region of audio frequencies . The pulsations of the arc itself which are induced by the varying current make the arc act as an acoustic source and the frequency of oscillation ...
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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