In an actual transformer the iron loss remains practically constant from noload to fullload because

rimary voltage remains constant

alue of transformation ratio remains constant

ermeability of transformer core remains constant

ore flux remains practically constant

In an actual transformer the iron loss remains practically constant fr

1.	In an actual transformer the iron loss remains practically constant from noload to fullload because
A.	alue of transformation ratio remains constant
B.	ermeability of transformer core remains constant
C.	ore flux remains practically constant
D.	rimary voltage remains constant
Answer» D. rimary voltage remains constant