## Principles of Electricity and Electromagnetism |

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Page 407

( b ) Induction voltage regulator . The secondaries may supply separate circuits or

may be

potentials . The secondaries may also be

( b ) Induction voltage regulator . The secondaries may supply separate circuits or

may be

**connected**arbitrarily in series to supply the algebraic sum of the inducedpotentials . The secondaries may also be

**connected**in parallel to increase the ...Page 408

In the case of a three - phase generator the windings may all be

series if the emfs . are all equal and the proper sense of

This is evident from a consideration of the three vectors in Fig . 12 . 14 . The sum

of ...

In the case of a three - phase generator the windings may all be

**connected**inseries if the emfs . are all equal and the proper sense of

**connection**is observed .This is evident from a consideration of the three vectors in Fig . 12 . 14 . The sum

of ...

Page 419

Two six - pole alternators on the same shaft have their outputs

series . If the rotating member of one is 20 mechanical degrees ahead of the

other , show that the total voltage developed is either the same or 3 times as

great ...

Two six - pole alternators on the same shaft have their outputs

**connected**inseries . If the rotating member of one is 20 mechanical degrees ahead of the

other , show that the total voltage developed is either the same or 3 times as

great ...

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angle 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 respect result rotation seen separation Show shown simple solution space surface temperature terminals transformer tube unit vector volts volume wave wire written zero