Principles of Electricity and Electromagnetism |
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Page 215
... amplifier is known as class C. The discussion of this type will be postponed till a later chapter as its chief use is with a tuned load as a power amplifier at radio frequencies . In this application it has a very high efficiency ...
... amplifier is known as class C. The discussion of this type will be postponed till a later chapter as its chief use is with a tuned load as a power amplifier at radio frequencies . In this application it has a very high efficiency ...
Page 505
... Amplifiers . - A class C amplifier is one in which the negative - grid bias is so great that plate current flows for much less than half of a cycle . The preceding analysis is only very approximately appli- cable to this case , since ...
... Amplifiers . - A class C amplifier is one in which the negative - grid bias is so great that plate current flows for much less than half of a cycle . The preceding analysis is only very approximately appli- cable to this case , since ...
Page 505
... Amplifiers . - A class C amplifier is one in which the negative - grid bias is so great that plate current flows for much less than half of a cycle . The preceding analysis is only very approximately appli- cable to this case , since ...
... Amplifiers . - A class C amplifier is one in which the negative - grid bias is so great that plate current flows for much less than half of a cycle . The preceding analysis is only very approximately appli- cable to this case , since ...
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alternating current alternating-current amplitude angle angular velocity anode applied approximately armature assumed atom axis calculated capacity cathode cell centimeter characteristic charge q circuit coefficient coil component condenser conduction conductor considered copper current density current flowing curve cylinder deflection determined dielectric constant direct-current discharge distance effective electric field electromotive force electrons electrostatic element energy equal equation ferromagnetic filament flux force frequency function galvanometer given grad grid hence hysteresis impedance induction insulating integral known Laplace's equation linear load magnetic field magnetic moment magnitude maximum measured medium metal meter molecules negative normal obtained ohms parallel plate polarization potential difference potential wave potentiometer produced proportional quantity R₁ radius ratio rectifier region represents resistance rotation Show shown in Fig solenoid solution substance surface temperature terminals theorem torque tube V₁ vector voltage volts wire written zero