## Principles of Electricity and Electromagnetism |

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Page vi

This is the system in which the

the

This is the system in which the

**unit**of work is the joule, the**unit**of power the watt,the

**unit**of charge the coulomb, and the**unit**of resistance the ohm. This system of**units**is used almost exclusively in all practical applications, and, to ...Page 11

Gaylord Probasco Harnwell. boldface type to represent vector quantities and

writing r1 for a vector of

becomes F = "or,. Here F is the force in dynes exerted by the charge qi on the

charge ...

Gaylord Probasco Harnwell. boldface type to represent vector quantities and

writing r1 for a vector of

**unit**length in the direction from qi to q2, Coulomb's lawbecomes F = "or,. Here F is the force in dynes exerted by the charge qi on the

charge ...

Page 12

This

and the

defined through Coulomb's law on this system, a constant of proportionality will ...

This

**unit**force is called the newton. The**unit**of work is the newton meter or joule,and the

**unit**of power is the joule per second ol watt. As the**unit**of charge is notdefined through Coulomb's law on this system, a constant of proportionality will ...

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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