58 ELECTRICAL ENGINEERING PROBLEMS 



and condenser and generator e.m.f.'s in their proper phase relation. 

 Construct a vector diagram for these three curves. (10 min.) 



'32. The e.m.f. curve, e = 100 sin a + 20 sin (3a - 30), con- 

 structed in problem 11, Chapter III, has co = 400 for its funda- 

 mental, and is applied to a circuit having an inductance of 0.05 

 henry and a resistance of 2 ohms. Plot the e.m.f. and the current 

 curve in their proper phase relation. (30 min.) 



33. The same e.m.f. as in problem 32 is applied to a 100-micro- 

 farad condenser. Plot the curves of e.m.f. and current in their 

 proper relation. (25 min.) 



