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Question 1. Time constant of an inductive circuit
  1.     Increases with increase of inductance and decrease of resistance
  2.     Increases with the increase of inductance and the increase of resistance
  3.     Increases with the decrease of inductance and decrease of resistance
  4.     Increases with decrease of inductance and increase of resistance
Answer: Option A

Question 2. The phase difference between voltage and current wave through a circuit element is given as 30°. the essential condition is that
  1.     Both waves must have same frequency
  2.     Both waves must have identical peak values
  3.     Both waves must have zero value at the same time
  4.     None of the above
Answer: Option A

Question 3. Capacitive susceptance is a measure of
  1.     Reactive power in a circuit
  2.     The extent of neutralization of reactive power in a circuit
  3.     A purely capacitive circuit's ability to pass current
  4.     A purely capacitive circuit's ability to resist the flow of current
Answer: Option C

Question 4. A pure capacitor connected across an a.c. voltage consumed 50 w. this is due to
  1.     The capacitive reactance in ohms
  2.     The current flowing in capacitor
  3.     The size of the capacitor being quite big
  4.     The statement is incorrect
Answer: Option D

Question 5. Skin effect occurs when a conductor carries current at _________ frequencies.
  1.     Very low
  2.     Low
  3.     Medium
  4.     High
Answer: Option D

Question 6. Skin effect occurs when a conductor carries current at _________ frequencies.
  1.     Very low
  2.     Low
  3.     Medium
  4.     High
Answer: Option D