## Principles of Electricity and Electromagnetism |

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Page 558

The validity of the approximation can be improved by placing a highly conducting

area or counterpoise over the surface of the ground in the neighborhood of the

base of the

The validity of the approximation can be improved by placing a highly conducting

area or counterpoise over the surface of the ground in the neighborhood of the

base of the

**antenna**. If the approximation is valid, the problem is reduced to that ...Page 563

In this case a is equal to x/2 (cos ^ — 1) and Eq. (16.34) becomes 2F cos j(l —

cos yj/) In this case, as can be seen from the figure, the majority of the radiation is

in the direction of a vector from the lagging to the leading

In this case a is equal to x/2 (cos ^ — 1) and Eq. (16.34) becomes 2F cos j(l —

cos yj/) In this case, as can be seen from the figure, the majority of the radiation is

in the direction of a vector from the lagging to the leading

**antenna**. If each of the ...Page 571

the two elements L and C are adjusted to fulfill the required conditions; however,

it is possible to satisfy the conditions with this circuit only if the

resistance is less than the characteristic resistance of the line. For high-frequency

...

the two elements L and C are adjusted to fulfill the required conditions; however,

it is possible to satisfy the conditions with this circuit only if the

**antenna**circuitresistance is less than the characteristic resistance of the line. For high-frequency

...

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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