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More Questions on This Topic :

Question 1. The transient currents are associated with the
  1.     Changes in the stored energy in the inductors and capacitors
  2.     Impedance of the circuit
  3.     Applied voltage to the circuit
  4.     Resistance of the circuit
Answer: Option A

Question 2. In any a.c. circuit always
  1.     Apparent power is more than actual power
  2.     Reactive power is more than apparent power
  3.     Actual power is more than reactive power
  4.     Reactive power is more than actual power
Answer: Option A

Question 3. The transient currents are associated with the
  1.     Changes in the stored energy in the inductors and capacitors
  2.     Impedance of the circuit
  3.     Applied voltage to the circuit
  4.     Resistance of the circuit
Answer: Option A

Question 4. The inductance of a coil can be increased by
  1.     Increasing core length
  2.     Decreasing the number of turns
  3.     Decreasing the diameter of the former
  4.     Choosing core material having high relative permeability
Answer: Option D

Question 5. The equation of 50 hz current sine wave having r.m.s. value of 60 a is
  1.     60 sin 25 t
  2.     60 sin 50 t
  3.     84.84 sin 3141
  4.     42.42 sin 314 t
Answer: Option C

Question 6. Power factor of the system is kept high
  1.     To reduce line losses
  2.     To maximize the utilization of the capacities of generators, lines and transformers
  3.     To reduce voltage regulation of the line
  4.     Due to all above reasons
Answer: Option D