A two-winding single phase transformer has a voltage regulation of 4.5% at full-load
and unity power-factor. At full-load and 0.80 power-factor lagging load the voltage
regulation will be
 (A) 4.5%. (B) less than 4.5%.
 (C) more than 4.5%. (D) 4.5% or more than 4.5%.

1 Answer

Answer :

(C) more than 4.5%.

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