Principles of Electricity and Electromagnetism |
From inside the book
Results 1-3 of 83
Page 321
... means of the motor M and v , the number of rotations per second is measured stroboscopically . The two coils A and A ' symmetrically placed on either side of the disk carry a current i which produces an axial field through the disk ...
... means of the motor M and v , the number of rotations per second is measured stroboscopically . The two coils A and A ' symmetrically placed on either side of the disk carry a current i which produces an axial field through the disk ...
Page 326
... means of a fine phosphor - bronze fiber which exerts a smaller restoring torque than the spiral spring used in the pivot type of instrument . The current enters and leaves the coil by means of this fiber and a loose helix of fine wire ...
... means of a fine phosphor - bronze fiber which exerts a smaller restoring torque than the spiral spring used in the pivot type of instrument . The current enters and leaves the coil by means of this fiber and a loose helix of fine wire ...
Page 367
... means of R1 . Then 20 or 30 reversals of the current are made at intervals of a few seconds by means of S1 until the specimen has reached the characteristic cyclic state . This may be judged by the uniformity of the galvanometer throws ...
... means of R1 . Then 20 or 30 reversals of the current are made at intervals of a few seconds by means of S1 until the specimen has reached the characteristic cyclic state . This may be judged by the uniformity of the galvanometer throws ...
Other editions - View all
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