The efficiency of a properly designed synchronous motor will usually fall in range___________?
A. 60 to 70%
B. 75 to 80%
C. 85 to 95%
D. 99 to 99.5%
A. 60 to 70%
B. 75 to 80%
C. 85 to 95%
D. 99 to 99.5%