## 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 avoid the ...Page 11

boldface type to represent vector quantities and writing ri for a vector of

length in the direction from qi to qi, Coulomb's law becomes F - 9l?2r Here F is

the force in dynes exerted by the charge qi on the charge qi, and r is the

separation of ...

boldface type to represent vector quantities and writing ri for a vector of

**unit**length in the direction from qi to qi, Coulomb's law becomes F - 9l?2r Here F is

the force in dynes exerted by the charge qi on the charge qi, and r is the

separation of ...

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 or 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 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 grid hence 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 scalar Show shown in Fig solenoid solution surface temperature terminals theorem torque tube unit vector velocity voltage volts wire written zero