## Principles of Electricity and Electromagnetism |

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Page 74

If d is the distance from a fixed to a movable plate and V is the potential difference

between the two sets, show that the electrostatic torque is given by (ru0/2d)r,V,,

where r is the

If d is the distance from a fixed to a movable plate and V is the potential difference

between the two sets, show that the electrostatic torque is given by (ru0/2d)r,V,,

where r is the

**radius**vector to the rim of the movable plates at the point of entry.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**rj which is projected through a swarmof other particles of

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

...

Page 307

A circuit is in the form of a regular polygon of n sides inscribed in a circle of

a. If it is carrying a current i, show that the magnetic induction at the center is

given by tan - ' Show that this expression approaches the induction at the center

of ...

A circuit is in the form of a regular polygon of n sides inscribed in a circle of

**radius**a. If it is carrying a current i, show that the magnetic induction at the center is

given by tan - ' Show that this expression approaches the induction at the center

of ...

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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