## Principles of Electricity and Electromagnetism |

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Page 30

If the

charges that can be excluded from the

them, Poisson's equation reduces to V2V = 0 (1.30) throughout the charge-free ...

If the

**region**is free of charges and the field is produced by charged surfaces or bycharges that can be excluded from the

**region**by closed surfaces drawn aboutthem, Poisson's equation reduces to V2V = 0 (1.30) throughout the charge-free ...

Page 270

Below 665 volts in that diagram is the Townsend discharge

. (8.6) the current is proportional to the initial ionization n'0. But there is a large

amplification constant that results from the discharge. The rate of increase of ...

Below 665 volts in that diagram is the Townsend discharge

**region**. Here, from Eq. (8.6) the current is proportional to the initial ionization n'0. But there is a large

amplification constant that results from the discharge. The rate of increase of ...

Page 316

Thus the

is completely shielded from any external changes in the magnetic induction.

Ordinary conductors exert a partial shielding effect of the same nature, but since

the ...

Thus the

**region**inside the conductor or any volume completely surrounded by itis completely shielded from any external changes in the magnetic induction.

Ordinary conductors exert a partial shielding effect of the same nature, but since

the ...

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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