## Principles of Electricity and Electromagnetism |

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Page 503

On this scale the magnitude of the negative grid bias, E'c, is given by E'- = Ec - E0

= Ee - — * (15.5)' And on this scale the magnitude of the sinusoidal grid potential

is the applied excitation, E„, plus the fluctuating

On this scale the magnitude of the negative grid bias, E'c, is given by E'- = Ec - E0

= Ee - — * (15.5)' And on this scale the magnitude of the sinusoidal grid potential

is the applied excitation, E„, plus the fluctuating

**component**of the plate poten- ...Page 533

Thus div E = 0 becomes dEz/dz = 0, hence the electric field has no varying

also has no

the ...

Thus div E = 0 becomes dEz/dz = 0, hence the electric field has no varying

**component**along the z axis. The vanishing of the divergence of H shows that italso has no

**component**along this axis. As this is the direction of propagation ofthe ...

Page 540

and where c" is the velocity of propagation in the second medium and the S's are

the phase shifts. The electric and magnetic conditions at the boundary are that

the tangential

...

and where c" is the velocity of propagation in the second medium and the S's are

the phase shifts. The electric and magnetic conditions at the boundary are that

the tangential

**components**of E and H shall be continuous. These conditions may...

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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