10 DIRECT-CURRENT DYNAMOS AND MOTORS. 
99. Compute the gauge of the armature wire for a 30 H. P. 
bipolar elevator motor to run on a 220-volt circuit. . 
200. What size wire should be used for a 12 K. W. 4-pole arc- 
light generator delivering 10 amperes and having a 
two-circuit winding? 
Printed in U.S.A, 
