## Principles of Electricity and Electromagnetism |

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Page 276

equal currents but in opposite directions exert an inappreciable force on a distant

current or current element. Thus the effects of oppositely directed currents at ...

**Ampere's**first experiment showed that two wires very close together traversed byequal currents but in opposite directions exert an inappreciable force on a distant

current or current element. Thus the effects of oppositely directed currents at ...

Page 277

observed between currents and individual moving charges. Likewise charges in

motion have been shown by Rowlandi and Adams2 to produce magnetic effects.

Hence ...

**Ampere's**experiments dealt with closed circuits, but these forces can beobserved between currents and individual moving charges. Likewise charges in

motion have been shown by Rowlandi and Adams2 to produce magnetic effects.

Hence ...

Page 278

A X B would rotate the vector A through the smaller angle into the position

occupied by B. In terms of this concept

is an arbitrary constant which depends upon the units chosen, ri is a unit vector in

the ...

A X B would rotate the vector A through the smaller angle into the position

occupied by B. In terms of this concept

**Ampere's**law of force would be written r Cis an arbitrary constant which depends upon the units chosen, ri is a unit vector in

the ...

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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