Principles of Electricity and Electromagnetism |
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Page 42
... distance r from an infinite line charge of density q is E , = qi 2пког 8. A circular disk of radius R is charged to a uniform surface density q .. Show that the electric field on the axis of the disk a distance x from the center is ...
... distance r from an infinite line charge of density q is E , = qi 2пког 8. A circular disk of radius R is charged to a uniform surface density q .. Show that the electric field on the axis of the disk a distance x from the center is ...
Page 43
... distance apart . Eo is then equal to 2q / 4πкod2 , where q is the magnitude of each charge and d is the distance from the region under consideration . ( q / d2 remains finite as q and d are indefinitely increased . ) Show by the method ...
... distance apart . Eo is then equal to 2q / 4πкod2 , where q is the magnitude of each charge and d is the distance from the region under consideration . ( q / d2 remains finite as q and d are indefinitely increased . ) Show by the method ...
Page 381
... distance , show that the force tending to draw them together is AB2 - μ ( " = 1 ) 453 or 14 ( μ — - 1 ) ( η'ΐ ) εμμο μ με 5. A U - shaped electromagnet has n turns of wire and carries a current i . A , l , and are its cross section ...
... distance , show that the force tending to draw them together is AB2 - μ ( " = 1 ) 453 or 14 ( μ — - 1 ) ( η'ΐ ) εμμο μ με 5. A U - shaped electromagnet has n turns of wire and carries a current i . A , l , and are its cross section ...
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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