Principles of Electricity and Electromagnetism |
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Page 323
... coil and a permanent magnet are known in general as galva- nometers . They are of basic importance in all branches ... Coil Coil Magnet Magnet Earths field Scale Pointer Coil terminals FIG . 10.7 . - The tangent galvanometer . ( a ) the ...
... coil and a permanent magnet are known in general as galva- nometers . They are of basic importance in all branches ... Coil Coil Magnet Magnet Earths field Scale Pointer Coil terminals FIG . 10.7 . - The tangent galvanometer . ( a ) the ...
Page 325
... coil instruments . As it is not practicable to make an absolute determination of m , the instrument is calibrated by passing a known current through the coils and the coefficient of 0 or the ratio . Permanent magnet Terminal Iron Tron ...
... coil instruments . As it is not practicable to make an absolute determination of m , the instrument is calibrated by passing a known current through the coils and the coefficient of 0 or the ratio . Permanent magnet Terminal Iron Tron ...
Page 341
... coil and tan - 1 ( wL / R ) . What is the angle between the normal to the plane of the coil and the field at maximum current ? $ = 14. Neglecting friction show that the average value of the torque necessary to maintain the rotation of ...
... coil and tan - 1 ( wL / R ) . What is the angle between the normal to the plane of the coil and the field at maximum current ? $ = 14. Neglecting friction show that the average value of the torque necessary to maintain the rotation of ...
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angle antenna applied approximately assumed atom axis becomes calculated capacity carrying cell characteristic charge circuit closed coil component condition conducting conductor connected considered constant curve density depends determined dielectric difference direction discharge discussion distance effective electric electrons element energy equal equation evident expression factor field flow flux force frequency function galvanometer given grid hence impedance important increases indicated induction integral ions known length limited linear load losses magnetic magnetic field magnitude maximum means measured mechanical metal meter method negative normal obtained oscillations parallel path period phase placed plate positive potential present produced proportional quantities radius ratio reduced region relation represents resistance result rotation seen separation Show shown simple solution space surface temperature terminals transformer tube unit vector volts volume wave wire written zero