Principles of Electricity and Electromagnetism |
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Page 20
... relation between the charges carried by a group of conductors and the potentials of the conductors . If this relation is known , a measurement of the potentials will yield the charges and vice versa . The potential of any point , in ...
... relation between the charges carried by a group of conductors and the potentials of the conductors . If this relation is known , a measurement of the potentials will yield the charges and vice versa . The potential of any point , in ...
Page 91
... relation between the current density and the electric field producing it . In the preceding section it was seen that to a very good approximation there is a simple linear relation between these two quantities for metallic conduction ...
... relation between the current density and the electric field producing it . In the preceding section it was seen that to a very good approximation there is a simple linear relation between these two quantities for metallic conduction ...
Page 293
... relation and may be used immediately for the calculation of the field , H , in the cases of very symmetrical cir- cuits . For example the field due to a straight wire is obtained by integrating Hdl around a coaxial circle say of radius ...
... relation and may be used immediately for the calculation of the field , H , in the cases of very symmetrical cir- cuits . For example the field due to a straight wire is obtained by integrating Hdl around a coaxial circle say of radius ...
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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