Principles of Electricity and Electromagnetism |
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Page 174
... direct current , measuring the amount of direct current in the nonlinear element at balance . The alternating - current Po Thermistor G R www power or electromagnetic radiation is then added to the thermistor , un- balancing the bridge ...
... direct current , measuring the amount of direct current in the nonlinear element at balance . The alternating - current Po Thermistor G R www power or electromagnetic radiation is then added to the thermistor , un- balancing the bridge ...
Page 421
... current of essentially constant magnitude may be produced . Such a machine is known as a direct- current generator . Both alternating and direct currents are widely used for the trans- mission of power . Each system has its advantages ...
... current of essentially constant magnitude may be produced . Such a machine is known as a direct- current generator . Both alternating and direct currents are widely used for the trans- mission of power . Each system has its advantages ...
Page 529
... direct - current power from a battery or generator into alternating - current power throughout the entire frequency range from 0 to about 1010 cycles per second as in amplifiers and oscillators . The basic phenomena associated with non ...
... direct - current power from a battery or generator into alternating - current power throughout the entire frequency range from 0 to about 1010 cycles per second as in amplifiers and oscillators . The basic phenomena associated with non ...
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alternating current alternating-current amperes amplifier amplitude angle angular anode antenna applied approximately assumed atoms axis battery calculated capacity cathode cell characteristic circuit coefficient coil component condenser conducting conductor considered copper current flowing curve cylinder deflection determined dielectric constant direct-current discharge distance effective electric field electromotive force electrons electrostatic element energy equal equation flux force frequency function galvanometer given grid hence impedance induction insulating integral ions known Laplace's equation linear load magnetic field magnetic moment magnitude maximum measured medium metal meter molecules negative nonlinear normal ohms oscillations parallel plane plate polarization positive potential difference potential wave potentiometer produced proportional R₁ radius ratio reactance region represents resistance rotation Show shown in Fig solenoid solution surface temperature terminals theorem thermistor torque tube unit length V₁ vector velocity voltage volts wire written zero