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Home Electrical Engineering Alternating Current and Voltage Comments

  • Question
  • If the peak of a sine wave is 13 V, the peak-to-peak value is


  • Options
  • A. 6.5 V
  • B. 13 V
  • C. 26 V
  • D. none of the above

  • Correct Answer
  • 26 V 


  • Alternating Current and Voltage problems


    Search Results


    • 1. The average value of a 12 V peak sine wave over one complete cycle is

    • Options
    • A. 0 V
    • B. 1.27 V
    • C. 7.64 V
    • D. 6.37 V
    • Discuss
    • 2. A signal with a 400 µs period has a frequency of

    • Options
    • A. 250 Hz
    • B. 2,500 Hz
    • C. 25,000 Hz
    • D. 400 Hz
    • Discuss
    • 3. If the rms voltage drop across a 15 kΩ resistor is 16 V, the peak current through the resistor is

    • Options
    • A. 15 mA
    • B. 1.5 mA
    • C. 10 mA
    • D. 1 mA
    • Discuss
    • 4. A 20 kHz pulse waveform consists of pulses that are 15 µs wide. The duty cycle

    • Options
    • A. is 1%
    • B. is 30%
    • C. is 100%
    • D. cannot be determined
    • Discuss
    • 5. If the rms current through a 4.7 kΩ resistor is 4 mA, the peak voltage drop across the resistor is

    • Options
    • A. 4 V
    • B. 18.8 V
    • C. 26.6 V
    • D. 2.66 V
    • Discuss
    • 6. Sine wave A has a positive-going zero crossing at 45°. Sine wave B has a positive-going zero crossing at 60°. Which of the following statements is true?

    • Options
    • A. Wave A leads wave B by 15°.
    • B. Wave A lags wave B by 15°.
    • C. Wave A leads wave B by 105°.
    • D. Wave A lags wave B by 105°.
    • Discuss
    • 7. A phasor represents

    • Options
    • A. the magnitude and a quantity direction
    • B. the width of a quantity
    • C. the phase angle
    • D. the magnitude of a quantity
    • Discuss
    • 8. A pulse waveform has a high time of 8 ms and a pulse width of 32 ms. The duty cycle is

    • Options
    • A. 25%
    • B. 50%
    • C. 1%
    • D. 100%
    • Discuss
    • 9. A sinusoidal current has an rms value of 14 mA. The peak-to-peak value is

    • Options
    • A. 45.12 mA
    • B. 16 mA
    • C. 39.6 mA
    • D. 22.6 mA
    • Discuss
    • 10. The average half-cycle value of a sine wave with a 40 V peak is

    • Options
    • A. 25.48 V
    • B. 6.37 V
    • C. 14.14 V
    • D. 50.96 V
    • Discuss


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