## Principles of Electricity and Electromagnetism |

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Page 9

The Law of

handle electrical phenomena quantitatively it is necessary to know how the

between charges varies with the physical circumstances. It must be specified first

of ...

The Law of

**Force**between Elementary Electrostatic Charges. — In order tohandle electrical phenomena quantitatively it is necessary to know how the

**force**between charges varies with the physical circumstances. It must be specified first

of ...

Page 10

The magnitude of this

knob K that supports the upper end of the fiber must be rotated in order to return

the arm to its equilibrium position in the absence of the charge qt. Thus the torque

...

The magnitude of this

**force**may be measured by the angle through which theknob K that supports the upper end of the fiber must be rotated in order to return

the arm to its equilibrium position in the absence of the charge qt. Thus the torque

...

Page 12

This unit

and the unit of power is the joule per second or watt. As the unit of charge is not

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 not

defined 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