## Principles of Electricity and Electromagnetism |

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Page 365

Hysteresis

of particular interest for alternating-current work are those which appear when the

sample is subjected to a magnetic field that is periodically reversed in direction ...

Hysteresis

**Curves**and General Magnetic Properties. — The phenomena that areof particular interest for alternating-current work are those which appear when the

sample is subjected to a magnetic field that is periodically reversed in direction ...

Page 392

The

open-circuit brush voltage as a function of the field current. Since the field current

is proportional to the actual potential difference between the brushes, V, the ...

The

**curves**at the left indicate its graphical derivation. The**curve**marked V0 is theopen-circuit brush voltage as a function of the field current. Since the field current

is proportional to the actual potential difference between the brushes, V, the ...

Page 527

If & is considerably smaller than a, this equation represents the type of

shown by one of the dashed units of Fig. 15.21. This

in grid Fig. 15.21. — Typical relaxation oscillator or multivibrator. potential

between ...

If & is considerably smaller than a, this equation represents the type of

**curve**shown by one of the dashed units of Fig. 15.21. This

**curve**describes the variationin grid Fig. 15.21. — Typical relaxation oscillator or multivibrator. potential

between ...

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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