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AC Fundamentals, Circuits, and Circuit Theory MCQ Test

  1. Which of the following option refers to a parallel circuit?
  2. With which of the following option the transient currents are associated?
  3. Power factor of an electrical circuit is equal to
  4. The time constant of a series R-C circuit is given by
  5. The ratio of active power to apparent power is known as which factor?
  6. Power factor of electric bulb is ............
  7. The power factor at resonance in R-L-C parallel circuit is
  8. The period of a wave is
  9. Which of the following coil will have large resonant frequency?
  10. The r.m.s. value and mean value is the same in the case of
  11. For a frequency of 200 Hz, the time period will be
  12. Capacitive reactance is more when
  13. Time constant of an inductive circuit
  14. Capacitive susceptance is a measure of
Last Updated: Feb 17, 2023,
Posted in Interview Questions,
20 Questions
AC Fundamentals, Circuits, and Circuit Theory MCQ

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  • The current through each element is same
  • The equivalent resistance is greater than any one of the resistors
  • The voltage across element is in proportion to it's resistance value
  • The current through any one element is less than the source current
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  • Resistance of the circuit
  • Impedance of the circuit
  • Applied voltage to the circuit
  • Changes in the stored energy in the inductors and capacitors
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  • R/Z
  • Ratio of useful current to total current Iw/I
  • Cosine of phase angle difference between current and voltage
  • All of the above
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  • Expressed in amperes
  • The same as frequency
  • Time required to complete one cycle
  • None of the above
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  • A coil with low resistance
  • A coil with large resistance
  • A coil with low distributed capacitance
  • A coil with large distributed capacitance
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  • Sine wave
  • Square wave
  • Triangular wave
  • None of the above
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  • Capacitance is less and frequency of supply is more
  • Capacitance is more and frequency of supply is less
  • Capacitance is less and frequency of supply is less
  • Capacitance is more and frequency of supply is more
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  • Increases with decrease of inductance and increase of resistance
  • Increases with increase of inductance and decrease of resistance
  • Increases with the decrease of inductance and decrease of resistance
  • None of the above
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  • Reactive power in a circuit
  • A purely capacitive circuit's ability to pass current
  • The extent of neutralization of reactive power in a circuit
  • A purely capacitive circuit's ability to resist the flow of current
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  • R-L circuit
  • R-C circuit
  • R-L-C circuit
  • Purely inductive circuit
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  • Unity
  • Zero
  • Less than unity
  • Greater than unity
  • Inductance
  • Capacitance
  • Resistance
  • Both A & B
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