## Principles of Electricity and Electromagnetism |

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Page 387

The frame of the machine , which is of iron or steel , provides a low - reluctance

path for the flux , as

armature rotates . The reluctance of this gap is reduced by winding the armature

on a ...

The frame of the machine , which is of iron or steel , provides a low - reluctance

path for the flux , as

**shown**in Fig . 12 . 7 , except for the region in which thearmature rotates . The reluctance of this gap is reduced by winding the armature

on a ...

Page 401

Vm , which is

the revolution of with varying the synchronous motor . It is

1 / 2 gram somewhat shorter than V . , though this depends on the excitation .

Vm , which is

**shown**at the angle a – B , Locus of v is the back emf . generated bythe revolution of with varying the synchronous motor . It is

**shown**in the diaload ,1 / 2 gram somewhat shorter than V . , though this depends on the excitation .

Page 479

14 . 19 . The simplest type of band - pass - filter section is also

( 14 . 25 ) the bounding frequencies are seen to be ( V2 + 1 ) wo . Wo is written for

1 / VLC and is seen to be the geometric mean of the bounding frequencies .

14 . 19 . The simplest type of band - pass - filter section is also

**shown**. From Eq .( 14 . 25 ) the bounding frequencies are seen to be ( V2 + 1 ) wo . Wo is written for

1 / VLC and is seen to be the geometric mean of the bounding frequencies .

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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