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For constant load current at which power factor the efficiency of the transformer will be maximum?
Zero power factor
Unity power factor
Leading power factor
Lagging power factor
Unity power factor
Quick Summary: Practice and solve "For constant load current at which power factor the efficiency of the transformer will be maximum?..." for Electrical - Machine. The correct answer is Option B: Unity power factor. Detailed step-by-step solution, conceptual clarity, and formulas on Examoogle.
Answer:
Option **(b) **