

MCQOPTIONS
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1. |
For a single phase transformer operating at normal operating conditions has useful flux of 1 Wb. If the machine is loaded at 0.8 p.f., then its mutual flux __________ |
A. | may decrease to 0.98 Wb |
B. | remains constant |
C. | may increase 1.02 Wb |
D. | may decrease to 0.8 Wb |
Answer» B. remains constant | |