## Principles of Electricity and Electromagnetism |

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Page 309

The previous chapter was principally concerned with the mechanical forces

between

velocities. Ampere's law of force was used to construct an energy function which

was written ...

The previous chapter was principally concerned with the mechanical forces

between

**circuits**carrying steady currents or charges moving with uniformvelocities. Ampere's law of force was used to construct an energy function which

was written ...

Page 448

An alternative

replaced by a center-tapped transformer. Except for loss calculations, the

characteristics of the

balanced ...

An alternative

**circuit**is shown at the left in Fig. 13.20. Half of the square is herereplaced by a center-tapped transformer. Except for loss calculations, the

characteristics of the

**circuit**are the same as those Flo. 13.21. — Use of thebalanced ...

Page 513

An ordinary carbon arc shunted by a series resonant

oscillate strongly in the region of audio frequencies. The pulsations of the arc

itself which are induced by the varying current make the arc act as an acoustic

source ...

An ordinary carbon arc shunted by a series resonant

**circuit**can be made tooscillate strongly in the region of audio frequencies. The pulsations of the arc

itself which are induced by the varying current make the arc act as an acoustic

source ...

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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