## Principles of Electricity and Electromagnetism |

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Page 130

The standard 8. in terms of which ordinary laboratory measurements are made

with this instrument is generally the Weston standard

specially prepared type of voltaic

constancy ...

The standard 8. in terms of which ordinary laboratory measurements are made

with this instrument is generally the Weston standard

**cell**(Sec. 6.2). This is aspecially prepared type of voltaic

**cell**which is characterized by an extremeconstancy ...

Page 179

consequence of the fundamental laws of thermodynamics can be applied to a

reversible

"free energy," and T is the absolute temperature. The change in internal energy of

...

consequence of the fundamental laws of thermodynamics can be applied to a

reversible

**cell**. It may be written1 •>,\ (6.4) where E is the internal energy, ^ is the"free energy," and T is the absolute temperature. The change in internal energy of

...

Page 180

For the most accurate work a number of

kept in use and compared with one

comparison with the primary standards of resistance and current must be made at

...

For the most accurate work a number of

**cells**should Weston normal standard bekept in use and compared with one

**cell**> another from time to time. Alsocomparison with the primary standards of resistance and current must be made at

...

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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 grad grid hence hysteresis 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 plane plate positive potential difference potential wave potentiometer produced proportional quantities radiation radius ratio reactance region represents resistance resonant rotation Show shown in Fig solenoid solution surface temperature terminals theorem torque tube unit vector velocity voltage volts wire written zero