If primary and secondary windings of core-type single-phase

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Electronics Engineering

103

M: +2.00/-0.66

If primary and secondary windings of core-type single-phase transformer are wound on nonmagnetic core, then the
1) efficiency of the transformer will decrease
2) efficiency of the transformer will increase
3) transformer regulation will increase
4) transformer regulation will decrease
Which of the above possibilities are realized?

[ESE (IES) EC 2017 Technical]

A 1 and 4

B 1 and 3

C 2 and 3

D 2 and 4