41. Which of the following statements regarding an idel single-phase transformer having a turn ratio of 1 : 2 and drawing a current of 10 A from 200 V A.C. supply is incorrect?
42. The maximum efficiency of a distribution transformer is
43. Which of the following protection is normally not provided on small distribution transformers?
44. Insertion of resistance in the rotcir of an induction motor to develop a given torque
45. The efficiency of a transformer will be maximum when
46. The transformer ratings are usually expressed in terms of
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