The full-load copper loss of a trans¬former is 1600 W. At half-load, the copper loss will be
A. 6400 W
B. 1600 W
C. 800 W
D. 400 W
Answer:D
The full-load copper loss of a trans¬former is 1600 W. At half-load, the copper loss will be
A. 6400 W B. 1600 W C. 800 W D. 400 W