Principles of Electricity and Electromagnetism |
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Page 385
... 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 400
... current is drawn from the armature , there is of course an armature reaction as in the case of the direct - current machine , though its effects can be minimized by proper design . For a further discussion of alternator design reference ...
... current is drawn from the armature , there is of course an armature reaction as in the case of the direct - current machine , though its effects can be minimized by proper design . For a further discussion of alternator design reference ...
Page 493
... 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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Common terms and phrases
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 dynamic resistance effective electric field electromagnetic electromotive force electrons electrostatic element energy equal equation flux force frequency function galvanometer grad harmonic hence impedance induction integral ions known length linear load magnetic field magnetic moment magnitude maximum measured meter negative obtained ohms oscillations output parallel phase plane plate current positive potential difference potentiometer quantities R₁ radiation radius ratio reactance region represents resistance resonant rotation scalar shown in Fig solution surface temperature terminals theorem torque transconductance triode tube unit vacuum tube vector velocity voltage volts wave wire written zero