## Principles of Electricity and Electromagnetism |

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Page 438

The condition of

to zero, Eq. (13.14) yields the

13.15) In general this is a cubic equation in ws and the three roots give the three

...

The condition of

**resonance**is defined as that for which X' vanishes. Equating X'to zero, Eq. (13.14) yields the

**resonant**condition X,X>(X, + Xi) = -(Xiflj + X2flf) (13.15) In general this is a cubic equation in ws and the three roots give the three

...

Page 464

14.8, tj is plotted in units of QV l2u>0y/L\Li as a function of QSw/wo in the

neighborhood of

The critical coupling condition corresponds to Qk = 1. For smaller values of Qk

the ...

14.8, tj is plotted in units of QV l2u>0y/L\Li as a function of QSw/wo in the

neighborhood of

**resonance**for a few representative values of the parameter Qk.The critical coupling condition corresponds to Qk = 1. For smaller values of Qk

the ...

Page 513

An ordinary carbon arc shunted by a series

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 ...

An ordinary carbon arc shunted by a series

**resonant**circuit can be made tooscillate 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 ...

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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 grid hence impedance induction integral ions known Laplace's equation length linear load magnetic field magnetic induction magnitude maximum measured metal meter negative normal obtained ohms oscillations output parallel phase plane plate polarization positive potential difference potential wave potentiometer produced proportional quantities radiation radius ratio reactance region represents resistance resonant rotation scalar Show shown in Fig solenoid solution surface temperature terminals theorem torque tube unit vector velocity voltage volts wire written zero