Principles of Electricity and Electromagnetism |
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Page 58
... mechanical work equal to go Vo ( x 1 ) , is performed against mechanical forces in pulling the slab between the condenser + + E Field ( a ) FIG . 2.9 .- ( a ) Unpolarized dielectric . ( b ) ( b ) Polarized dielectric . plates . In the ...
... mechanical work equal to go Vo ( x 1 ) , is performed against mechanical forces in pulling the slab between the condenser + + E Field ( a ) FIG . 2.9 .- ( a ) Unpolarized dielectric . ( b ) ( b ) Polarized dielectric . plates . In the ...
Page 84
... mechanical stresses are suitably applied to these crystals , a separation of charge takes place , certain regions becoming positively charged and others negatively charged . The phenomenon is known as the piezo- electric effect . In the ...
... mechanical stresses are suitably applied to these crystals , a separation of charge takes place , certain regions becoming positively charged and others negatively charged . The phenomenon is known as the piezo- electric effect . In the ...
Page 467
... mechanical parameters must be measured as a function of the frequency and when the mechanical power has been obtained , this must be multiplied by the efficiency of the power transfer from the mechanical to the acoustical form to obtain ...
... mechanical parameters must be measured as a function of the frequency and when the mechanical power has been obtained , this must be multiplied by the efficiency of the power transfer from the mechanical to the acoustical form to obtain ...
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Common terms and phrases
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