## Principles of Electricity and Electromagnetism |

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Page 246

Consider first a particle of effective

of other particles of

relatively at rest. The chance of the projectile striking one of the particles per unit

...

Consider first a particle of effective

**radius**r1 which is projected through a swarmof other particles of

**radius**ra that are moving so slowly they may be consideredrelatively at rest. The chance of the projectile striking one of the particles per unit

...

Page 306

which is the sum of these two is L = *(or so - }) The self-inductance of a circular

coil of m turns with a

sectional

enters a ...

which is the sum of these two is L = *(or so - }) The self-inductance of a circular

coil of m turns with a

**radius**of curvature large in comparison with its cross-sectional

**radius**is to a good approximation n°L. Problems 1. A hydrogen ionenters a ...

Page 307

at the axial point. 16. A sphere of

o and rotated about an axis through its center with an angular velocity 2. Show

that the induction at the center is given by ...

at the axial point. 16. A sphere of

**radius**a is charged to a uniform surface densityo and rotated about an axis through its center with an angular velocity 2. Show

that the induction at the center is given by ...

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alternating current alternating-current amplitude angle angular velocity anode antenna applied approximately armature assumed atom axis calculated capacity cathode centimeter characteristic circuit coefficient coil component condenser conducting conductor considered curl current flowing curve deflection density determined dielectric constant direct-current direction discharge displacement distance effective electric field electromotive force electrons electrostatic element energy equal equation ferromagnetic flux force frequency function galvanometer given grad grid hence hysteresis impedance induction integral ions known Laplace's equation linear load magnetic field magnetic moment magnitude maximum measured meter motor negative normal obtained ohms oscillations output parallel phase plane plate polarization positive potential difference potentiometer produced proportional quantity radiation radius ratio reactance region represents resistance resonant rotation Show shown in Fig solenoid solution substance surface temperature terminals theorem torque transformer tube unit vector voltage volts wave wire written zero