In an actual transformer the iron loss remains practically constant from noload to fullload because
A)value of transformation ratio remains constant
B)permeability of transformer core remains constant
C)core flux remains practically constant
D)primary voltage remains constant

Question

Quizplus · Accepted Answer

The core flux in a transformer remains practically constant from no-load to full-load conditions because it is mainly determined by the primary voltage and the frequency, both of which are typically constant in operation. This constant flux means that the iron losses, which are related to the flux, also remain relatively constant across different load conditions.

In an Actual Transformer the Iron Loss Remains Practically Constant