## Principles of Electricity and Electromagnetism |

### From inside the book

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Page 104

In that case the resistance can be

the circuit and the potential difference across the required portion ... If R is known,

Ohm's law may be used to

In that case the resistance can be

**determined**by measuring the current throughthe circuit and the potential difference across the required portion ... If R is known,

Ohm's law may be used to

**determine**V from a measurement of i or vice versa.Page 417

The proportion of R associated with the primary and secondary must be

different circuits. Since the same current flows through all the resistances, R

which is the ...

The proportion of R associated with the primary and secondary must be

**determined**by a separate measurement if the losses are to be attributed to thedifferent circuits. Since the same current flows through all the resistances, R

which is the ...

Page 433

With the switch in its upper position, L and R of the measuring circuit can be

position, the alteration in the current at reson- L ance can be used to

the ...

With the switch in its upper position, L and R of the measuring circuit can be

**determined**by the variation of C, as described ... If the switch is closed in its lowerposition, the alteration in the current at reson- L ance can be used to

**determine**the ...

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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