CONVERSION OF ALTERNATING CURRENT. IQI 



Component curves n 2, a o. 



Resultant curve n = 2, a = o. 



Fig. 158. 



Component curves n = 2, a 90* 



Resultant curve n = 2, a. = 90. 



Fig. 159. 

 ut = (90 -f a) to / = (90 a) . Therefore 



The average rate of gener- 7 2 / 1 6 cos a 8 



ating heat in the conduc- 4 \/ ^ ff sin TT/ + * sto~*7^ 



tor c is proportional to : 



() 



The rate at which heat would be generated in a given conductor by the direct 

 current alone would be proportional to / 2 /4, and equation (ii) shows that the con- 

 ductor c has 



i t c -^+ 4 



TTW sin TT n n 1 sin 2 TT 



