## Principles of Electricity and Electromagnetism |

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Page 431

Thus, if Qo is of the order of 250, a 0.1 per cent change in

a 12.5 per cent change in current. It is evident that Qo is a measure of the

discrimination of the circuit, i.e., the change in current that will occur for a certain

change ...

Thus, if Qo is of the order of 250, a 0.1 per cent change in

**frequency**will result ina 12.5 per cent change in current. It is evident that Qo is a measure of the

discrimination of the circuit, i.e., the change in current that will occur for a certain

change ...

Page 433

If the switch is closed in its lower position, the alteration in the current at reson- L

ance can be used to determine the additional resistance introduced. so Or if a

standard radio-

...

If the switch is closed in its lower position, the alteration in the current at reson- L

ance can be used to determine the additional resistance introduced. so Or if a

standard radio-

**frequency**Doo-oo: resistance is available, the resistance -: of the...

Page 459

low

secondary circuit. And at high

becomes important in reducing the potential applied to the load. The elements of

Fig.

low

**frequencies**the shunt inductance kD, reduces the potential applied to thesecondary circuit. And at high

**frequencies**the series leakage inductance Libecomes important in reducing the potential applied to the load. The elements of

Fig.

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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