47 G Prof. T. B. Lyle on 



2nd and 17th, and so on, and 15 equispaced ordinate* per 

 half-wave obtained. These were subjected to harmonic 

 analysis, and the amplitudes o£ the different harmonics weie 

 affected by their proper factors to reduce them to flux, 

 current, orE.M.F.,as the case might be, in absolute mensme. 

 The results obtained are as follows : — 



(1) For the transformer at no load. 



Period = -02015 see. ; a> = 311-8. 

 ^=57-71 sin (oif-6-98) -4-34 sin3K-15-7) +0-35 sin 5(^-29). 



(£ =-1304 sin (o.t-44-23) + -0224 sin 3H-33) +"0057 sin 5(«rt-87). 

 F = 184700sin («t-97-ll) + 4300sin3(o,«-105-9)-300sin 5(^-84) 



7T71 



And as E 2 at no load = -» 2 ^r, we find that 



^ =345-5 sin (^-187-11) -24-1 sin 3(<»*-195-9) +2-8 sin 5(^-210). 



10 8 



(The different quantities are in absolute units and the phase 



angles in degrees.) 



(2) For the transformer at (q. p.) full non-inductive load. _ 



Period = -02053 sec. ; w = 30G. 

 The load was a manganin non-inductive resistance of 

 104-7 ohms. 

 ?> 8 =56 sin (»(-2-59) + 4-18 sin 3H-51-9) +-78 sin 5(^-61-2). 



C, 8 =1-945 sin(^-5-71) + -145 sin 3(^-50-l) + -034 sin 5(^-33-7). 

 .. iCl + )i2 C, = 12-6sin(^-45-21)+2-67sin3(< U i-33-4)+-75sin5H-30 



F =178900 sin (^-93-22)4-3900 sin 3(»t- 83-2) -400 sin 5(^-93) 

 C, =-309 sinf^ - 183-16) + -022 sin 3(«>t-233-5) + -005 sin 5(» t -216) 



And as E 2 =K 2 C, 2 = 104-7 x 10" . C 2 , we find that 

 E * =323-5 sin^-183-16) + 23 sin 3(^-233-5) + 5-2 sin 5(o>*-216) 

 10 s 



(3) For the transformer at (q.p.) full inductive load. Power 



/arfo)' = -73. 



Period = -01835sec; w = 342'4. 



The load was a manganin non-inductive resistance in series 

 with a copper wire" inductance-coil. The total external 



m 



