railway RRB JE (CBT I + CBT II) Mock Test 2024 Electrical Machines Transformer

The voltage applied to a transformer primary is increased keeping 'V/f' constant. With this "core loss" will -

1
Decrease and Magnetizing current Im will increases
2
Increase and Im will also increase
3
Remain constant and Im will be constant
4
Increase and Im will remain constant

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