## Principles of Electricity and Electromagnetism |

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Page 119

Though currents and potential differences and their product, which is the power,

are the

law makes resistance of great importance also. If R is known, the equations W =

Ri ...

Though currents and potential differences and their product, which is the power,

are the

**quantities**which | are of primary interest, the wide applicability of Ohm'slaw makes resistance of great importance also. If R is known, the equations W =

Ri ...

Page 587

It should be mentioned that all

are not vectors in the sense in which the term is here used. All directed electric

and magnetic

...

It should be mentioned that all

**quantities**capable of representation by an arroware not vectors in the sense in which the term is here used. All directed electric

and magnetic

**quantities**are vectors and obey the laws of manipulation which are...

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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### Common terms and phrases

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