ELECTRIC CIRCUITS 



and its absolute value is 



141 



The power factor of the circuit is 



T. r 2 2 



WV/ ^nnrjp I 



FIG. 107. 



The vector diagram is drawn with the e.m.f. as axis. 

 (3) Solve the circuit in Fig. 107. 



/ = 



0.) - 



and therefore 



where 



-.7(62 + 63) 



(02 



and 



The impedance of the circuit is 

 and its absolute value is 



The absolute value of the current is 



1 = Z' 



