Hamad Transformers 26/08/2021 A. Current B. Voltage C. Frequency D. All of the above Related Mcqs: Efficiency of a power transformer is of the order of________________?A. 100 per cent B. 98 per cent C. 50 per cent D. 25 per cent... If R2 is the resistance of secondary winding of the transformer and K is the transformation ratio then the equivalent secondary resistance referred to primary will be___________?A. R2/VK B. R2IK2 C. R22!K2 D. R22/K... Power transformers are generally designed to have maximum efficiency around__________?A. no-load B. half-load C. near full-load D. 10% overload... Which of the following is not a routine test on transformers ?A. Core insulation voltage test B. Impedance test C. Radio interference test D. Polarity test... The transformer oil should have _______ volatility and _______ viscosity?A. low,low B. high,high C. low,high D. high,low...
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