Time Response of Reactive Circuits MCQ Test

  1. How to measure transient response time T in RC circuit, when R is the value of the resistor in ohms and C is the value of the capacitor in Farads?
  2. A steady-state condition is reached when the output voltage reaches ______.
  3. An RC differentiator acts as a ____.
  4. What is the average value of the output in an RC differentiator, responding to repetitive pulses?
  5. The output of an RC integrator is taken across the _.
  6. In an RC differentiator, the sum of the capacitor voltage and the resistor voltage at any instant ____.
  7. The expression of current in R- C circuit is?
  8. In an R-C circuit, when the switch is closed, the response ____.
  9. Determine the voltage across the capacitor in the circuit shown in the question 6 is?
  10. The rising and falling edges of a pulse waveform contain the higher frequency component.
  11. The flat portions of a pulse waveform contain low-frequency components.
  12. What is the highest frequency contained in a pulse that has a rise and fall time equal to 10 microseconds (10 s)?
  13. If the capacitor in an integrator becomes leaky:
  14. After how many time constants, the transient part reaches more than 99 percent of its final value?
Time Response of Reactive Circuits MCQ

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  • R x C, in seconds
  • R/C, in seconds
  • R - C, in seconds
  • R + C, in seconds
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  • the average value of the input voltage
  • approximately 63% of the input voltage
  • the effective value of the input voltage
  • the input voltage
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  • low-pass filter
  • band-pass filter
  • high-pass filter
  • band-stop filter
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  • is zero
  • is equal to the input voltage
  • is 63 percent of the input voltage
  • cannot be determined
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  • must be zero
  • must be equal to the applied voltage
  • cannot be determined
  • is less than the applied voltage but greater than zero
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  • i=(V/R)exp⁡(t/RC )
  • i=(V/R)exp⁡(-t/RC )
  • i=(V/R)-exp(⁡t/RC )
  • i=(V/R)-exp⁡(-t/RC )
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  • do not vary with time
  • decays with time
  • rises with time
  • first increases and then decreases
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  • VC =60(1-e-t )V
  • VC =60(1+e-t )V
  • VC =60(1-et )V
  • VC =60(1+et )V
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  • the time constant will be effectively reduced
  • the waveshape of the output voltage across C is altered
  • the amplitude of the output is reduced
  • All of the above
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  • the capacitor charges less during a pulse and discharges less between pulses
  • the capacitor charges more during a pulse and discharges less between pulses
  • the capacitor charges less during a pulse and discharges more between pulses
  • the capacitor charges more during a pulse and discharges more between pulses
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  • the response to the rising pulse edge
  • the response between the rising and falling edges
  • the response to the falling pulse edge
  • All of the above
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  • all the input voltage is across the resistor
  • all the input voltage is across the inductor
  • 63 percent of the input voltage is across the resistor
  • 63 percent of the input voltage is across the inductor
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  • output of control system for an input varies with respect to time
  • input of control system with respect to time
  • Both A and B
  • None of the above
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  • Voltage across the inductor instantly reaches 63% of input voltage
  • Voltage across the inductor is zero
  • The inductor prevents a sudden change in voltage B.
  • The inductor prevents a sudden change in current
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