Principles of Electricity and Electromagnetism |
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Page 299
... flux through it changes by an amount do is given by Eq . ( 9.20 ) as dU i do The magnetic - flux density B is everywhere proportional to the current so the flux through the circuit is also proportional to the current and by analogy with ...
... flux through it changes by an amount do is given by Eq . ( 9.20 ) as dU i do The magnetic - flux density B is everywhere proportional to the current so the flux through the circuit is also proportional to the current and by analogy with ...
Page 335
... flux linkage of the coil changes by an amount characteristic of the particular instrument . It is not an absolute device , but must originally be calibrated against a standard solenoid . However , it is very con- venient and rugged and ...
... flux linkage of the coil changes by an amount characteristic of the particular instrument . It is not an absolute device , but must originally be calibrated against a standard solenoid . However , it is very con- venient and rugged and ...
Page 371
... flux densities . Also their hysteresis losses are small . The addition of a few per cent of chromium or molybdenum ... flux densities the perminvars , which are alloys containing about 45 per cent Ni , 30 per cent Fe , and 25 per cent Co ...
... flux densities . Also their hysteresis losses are small . The addition of a few per cent of chromium or molybdenum ... flux densities the perminvars , which are alloys containing about 45 per cent Ni , 30 per cent Fe , and 25 per cent Co ...
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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