Principles of Electricity and Electromagnetism |
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Page 86
... important factor . Mercury is the only metal that is a liquid at ordinary temperatures and this property makes it of great importance . in many electrical applications . In addition to these pure metals many alloys have been developed ...
... important factor . Mercury is the only metal that is a liquid at ordinary temperatures and this property makes it of great importance . in many electrical applications . In addition to these pure metals many alloys have been developed ...
Page 248
... important . Under favorable conditions slow electrons may become attached to certain types of molecules and form a negative ion . If this encounters a positive ion , the two may neutralize one another , the excess energy being ...
... important . Under favorable conditions slow electrons may become attached to certain types of molecules and form a negative ion . If this encounters a positive ion , the two may neutralize one another , the excess energy being ...
Page 594
... important property . From Eq . ( D.9 ) the line integral of ( grad u ) dl along the curve S as in Fig . ( D.8 ) is simply the difference between the values of the scalar u at the two end points , i.e. , B S3 ( grad u ) · dl B • = du ...
... important property . From Eq . ( D.9 ) the line integral of ( grad u ) dl along the curve S as in Fig . ( D.8 ) is simply the difference between the values of the scalar u at the two end points , i.e. , B S3 ( grad u ) · dl B • = du ...
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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 dynamic resistance effective electric field electromagnetic electromotive force electrons electrostatic element energy equal equation flux force frequency function galvanometer grad harmonic hence impedance induction integral ions known length linear load magnetic field magnetic moment magnitude maximum measured meter negative obtained ohms oscillations output parallel phase plane plate current positive potential difference potentiometer quantities R₁ radiation radius ratio reactance region represents resistance resonant rotation scalar shown in Fig solution surface temperature terminals theorem torque transconductance triode tube unit vacuum tube vector velocity voltage volts wave wire written zero