In a field’s test for dc series machines, the series fields of two machines are connected in series so as to make ………. losses of both machines equal.
A. copper
B. iron
C. friction and windage
D. total
Answer:B
In a field’s test for dc series machines, the series fields of two machines are connected in series so as to make ………. losses of both machines equal.
A. copper B. iron C. friction and windage D. total