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Home ‣ Electrical Engineering ‣ RC Circuits See What Others Are Saying!
  • Question

  • In a parallel RC circuit, there is 100 mA through the resistive branch and 100 mA through the capacitive branch. The total rms current is


  • Options
  • A. 200 mA
  • B. 100 mA
  • C. 282 mA
  • D. 141 mA

  • Correct Answer
  • 141 mA 

    • More questions

    • 1. A single-phase sinusoidal voltage of 120 V is connected to a 90 Ω load. Current in the circuit is

    • Options
    • A. 13.3 mA
    • B. 133 mA
    • C. 1.33 A
    • D. 6.2 A
      • Discuss
    • 2. The unit for reluctance is

    • Options
    • A. tesla
    • B. At/Wb
    • C. At/m
    • D. Wb
      • Discuss
    • 3. How many watt-hours represent 65 W used for 18 h?

    • Options
    • A. 11.7 Wh
    • B. 1,170 Wh
    • C. 11,700 Wh
    • D. 117,000 Wh
      • Discuss
    • 4. A parallel resonant band-pass filter consists of a 90 Ω resistor in series with a parallel network made up of a 60 mH coil and a 0.02 µF capacitor. The output is taken across the capacitor/coil. The coil winding has a resistance of 20 Ω. What is the center frequency of the filter?

    • Options
    • A. 459 Hz
    • B. 4,591 Hz
    • C. 999 Hz
    • D. 2,176 Hz
      • Discuss
    • 5. The permeability of a core material is an indication of the ability of the material to establish a magnetic field.

    • Options
    • A. True
    • B. False
      • Discuss
    • 6. The unit for permeability is

    • Options
    • A. Wb/At × m
    • B. At/m
    • C. At/Wb
    • D. Wb
      • Discuss
    • 7. A sine wave with an rms value of 12 V is riding on a dc level of 18 V. The maximum value of the resulting waveform is

    • Options
    • A. 6 V
    • B. 30 V
    • C. 35 V
    • D. 0 V
      • Discuss
    • 8. Referring to the given figure, determine ZTH as seen by RL if R1 is changed to 3.3 kΩ.


    • Options
    • A. 1488∠?70.7° Ω
    • B. 3859 ∠?31.2° Ω
    • C. 5180 ∠?50.5° Ω
    • D. 1828∠?50.2° Ω
      • Discuss
    • 9. A capacitor and a resistor are connected in series to a sine wave generator. The frequency is set so that the capacitive reactance is equal to the resistance and, thus, an equal amount of voltage appears across each component. If the frequency is increased

    • Options
    • A. VR > VC
    • B. VC > VR
    • C. VR = VC
    • D. VR and VC = 0
      • Discuss
    • 10. Critical frequencies are also called ?3 dB frequencies.

    • Options
    • A. True
    • B. False
      • Discuss

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