Question: For a power transformer operating at full load it draws voltage and current equal to 2 5 0 V and 1 0 0 A respectively

For a power transformer operating at full load it draws voltage and current equal to 250 V and 100 A respectively at 0.9 pf. Iron and copper losses are equal to 120 kW and 300kW. What is efficiency?a.96.44%b.86.44%c.99.12%d.Non of the mentioned

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