Wattmeter MCQ

71. In Induction wattmeters, the instantaneous value of deflecting torque is ________ voltage under measurement

  1. directly proportional to
  2. inversely proportional to
  3. directly proportional to the square of
  4. inversely proportional to the square of
Answer
Answer. c

72. The minimum number of wattmeter(s) required to measure 3-phase, 3-wire balanced or unbalanced power is

  1. 4
  2. 1
  3. 2
  4. 3
Answer
Answer. c
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