A 400 V, 10 KVA transformer at 50 Hz, is operated at the frequency of – McqOptions

MCQOPTIONS

1.	A 400 V, 10 KVA transformer at 50 Hz, is operated at the frequency of 40 Hz, then the humming
A.	increases
B.	decreases
C.	remains same
D.	increases to very high
Answer» B. decreases

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