## Principles of Electricity and Electromagnetism |

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Page 424

It is very convenient in much of the subsequent discussion to introduce a

Q which is a figure of merit for an oscillatory circuit. It is defined for later work as

the ratio of the inductive reactance of a circuit to its resistance, i.e., wl, R For free ...

It is very convenient in much of the subsequent discussion to introduce a

**quantity**Q which is a figure of merit for an oscillatory circuit. It is defined for later work as

the ratio of the inductive reactance of a circuit to its resistance, i.e., wl, R For free ...

Page 584

but a further simplification can be made. A

equations a' + aro = Q cosh 6 and maco = Q sinh 6 Since cosh” 6 – sinho. 6 = 1,

the following condition is imposed upon Q: Q = V (a' = m2) ri H-2aror' + r.”. Since

the ...

but a further simplification can be made. A

**quantity**6 may be defined by theequations a' + aro = Q cosh 6 and maco = Q sinh 6 Since cosh” 6 – sinho. 6 = 1,

the following condition is imposed upon Q: Q = V (a' = m2) ri H-2aror' + r.”. Since

the ...

Page 601

The two actual units of mass and length (the kilogramme des Archives and the

international prototype meter) are chosen as the fundamental standard units of

these

The two actual units of mass and length (the kilogramme des Archives and the

international prototype meter) are chosen as the fundamental standard units of

these

**quantities**. The unit of time is the second (1/86,400 of a mean solar day).### What people are saying - Write a review

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alternating current alternating-current amplitude angle angular velocity anode antenna applied approximately armature assumed atom axis calculated capacity cathode centimeter characteristic circuit coefficient coil component condenser conducting conductor considered curl current flowing curve deflection density determined dielectric constant direct-current direction discharge displacement distance effective electric field electromotive force electrons electrostatic element energy equal equation ferromagnetic flux force frequency function galvanometer given grad grid hence hysteresis impedance induction integral ions known Laplace's equation linear load magnetic field magnetic moment magnitude maximum measured meter motor negative normal obtained ohms oscillations output parallel phase plane plate polarization positive potential difference potentiometer produced proportional quantity radiation radius ratio reactance region represents resistance resonant rotation Show shown in Fig solenoid solution substance surface temperature terminals theorem torque transformer tube unit vector voltage volts wave wire written zero