## Principles of Electricity and Electromagnetism |

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Page 225

would be measured in a

method for the general measurement of capacities is supplied by a bridge circuit.

A capacity bridge is indicated schematically in Fig. 7.23. In general two arms are

...

would be measured in a

**direct**- or alternating-**current**circuit. A more accuratemethod for the general measurement of capacities is supplied by a bridge circuit.

A capacity bridge is indicated schematically in Fig. 7.23. In general two arms are

...

Page 385

In this way a unidirectional current of essentially constant magnitude may be

produced. Such a machine is known as a

alternating and direct currents are widely used for the transmission of power.

Each system ...

In this way a unidirectional current of essentially constant magnitude may be

produced. Such a machine is known as a

**direct**-**current**generator. Bothalternating and direct currents are widely used for the transmission of power.

Each system ...

Page 400

When a current is drawn from the armature, there is of course an armature

reaction as in the case of the

minimized by proper design. For a further discussion of alternator design

reference ...

When a current is drawn from the armature, there is of course an armature

reaction as in the case of the

**direct**-**current**machine, though its effects can beminimized by proper design. For a further discussion of alternator design

reference ...

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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