## Principles of Electricity and Electromagnetism |

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Page 215

As has been previously mentioned, such a device is extremely inefficient as a

power

negligible plate current flows in the absence of grid excitation (e„ = 0), the

As has been previously mentioned, such a device is extremely inefficient as a

power

**amplifier**. If Ec is sufficiently negative (so-called negative bias) so that anegligible plate current flows in the absence of grid excitation (e„ = 0), the

**amplifier**is ...Page 226

One of the most satisfactory methods for the cascade connection of stages in a

low-power linear

such an

...

One of the most satisfactory methods for the cascade connection of stages in a

low-power linear

**amplifier**is so-called resistance-capacity coupling. A unit ofsuch an

**amplifier**is shown in Fig. 7.24. The connection between the plate of one...

Page 502

It is very difficult to calculate the actual power output, efficiency, and harmonic

content of a nonlinear

However, a certain insight is gained into its operation by considering a partially

linear ...

It is very difficult to calculate the actual power output, efficiency, and harmonic

content of a nonlinear

**amplifier**and the adjustments are generally empirical.However, a certain insight is gained into its operation by considering a partially

linear ...

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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 hysteresis 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 Show shown in Fig solenoid solution surface temperature terminals theorem torque tube unit vector velocity voltage volts wire written zero