For 275 kV transformers, using cold rolled grain oriented steel, which of the following values of flux density may be used?

For 275 kV transformers, using cold rolled grain oriented steel, which

1.	For 275 kV transformers, using cold rolled grain oriented steel, which of the following values of flux density may be used?
A.	1.0 Wb/m¬¨‚â§
B.	1.1 Wb/m¬¨‚â§
C.	1.3 Wb/m¬¨‚â§
D.	1.6 Wb/m¬¨‚â§
E.	None of the above
Answer» E. None of the above