THE .1 LTE If \ATti If 



121 



time in seconds necessary for the conductor a to move the 

 distance D is o/sec. Therefore, v = -. = 2fD cm. per second. 



2f 

 The total flux cut per polo <t> = B'lD 



The effective voltage i< 1.11 times the average, 1.11 being the 

 form factor of a sine wave. (See Page 10.) The effective in- 



Fio. 128. Generation of alternating electromotive force. 



volts per conductor, by substitution in the above equation 



e = 



8 volts. 



If there are Z conductor- in seriefl per phase, the effective einf. 

 per phase 



/: 2.22/0/1 ()- 8 volts. (36) 



If the enif. wave is not a nnc wave, the factor 1.11. which is 



mi-factor of asinc wave, should l>e c(.rrespoii(lini:ly cha 

 ( )winu r to the fad that tin- elect roi IK >t ive forces in the dilTen-nt 

 coiK of ;i j)hase l.elt ;nv not in t imo-phase with one anotliei 



lie conductor elect loniotive force> do not add algebraically. 

 Therefor.- a : culled MM- hn-inllk factor, must be intro- 



