Phase Relationship and Waveform Peak Value Quiz
18 Questions
0 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is the peak value of an alternating voltage waveform represented by v = 200 sin (628.4t – 0.41) volts?

  • 100 V
  • 300 V
  • 250 V (correct)
  • 150 V
  • In an alternating voltage waveform v = 20 sin 157.1t volts, what is the frequency of the waveform?

  • 100 Hz (correct)
  • 157.1 Hz
  • 50 Hz
  • 200 Hz
  • For an alternating voltage waveform v = 200 sin (628.4t – 0.41) volts, what is the periodic time of the waveform?

  • 0.08 sec (correct)
  • 0.02 sec
  • 0.06 sec
  • 0.04 sec
  • What is the phase angle of an alternating voltage waveform represented by v = 200 sin (628.4t – 0.41) volts?

    <p>$450^\circ$</p> Signup and view all the answers

    A waveform has a peak to peak value of 300V, calculate the waveform's rms value.

    <p>225.6 V</p> Signup and view all the answers

    In an alternating voltage waveform v = 20 sin 157.1t volts, what is the maximum value of the waveform?

    <p>$20 , \text{V}$</p> Signup and view all the answers

    What is the frequency of the generated emf when the rotational speed is 900 rev/minute?

    <p>30 Hz</p> Signup and view all the answers

    What is the periodic time of the sinewave shown in the figure if its frequency is 5 kHz?

    <p>25 μs</p> Signup and view all the answers

    What is the peak-to-peak value of the alternating voltage v=75 sin(200πt-0.25) volts?

    <p>150 V</p> Signup and view all the answers

    If the rms value of an alternating voltage is 50 V, what is its maximum value?

    <p>100 V</p> Signup and view all the answers

    What is the phase angle of the alternating voltage v=75 sin(200πt-0.25) volts?

    <p>-45 degrees</p> Signup and view all the answers

    If the amplitude of an alternating voltage is 10V, what is its frequency if the periodic time is 100μs?

    <p>20 kHz</p> Signup and view all the answers

    How many times is the minimum value of emf or current reached during one cycle of ac?

    <p>Once</p> Signup and view all the answers

    What is the correct formula for calculating the period of a sine wave?

    <p>$Period = \frac{2\pi}{\text{Frequency}}$</p> Signup and view all the answers

    Which term represents the time taken to complete one cycle of an alternating current?

    <p>Periodic time</p> Signup and view all the answers

    What does the phase angle of a sine wave indicate?

    <p>The position of the wave at a given time</p> Signup and view all the answers

    If the effective voltage of a sine wave is 150V, what is the peak voltage?

    <p>212V</p> Signup and view all the answers

    What characteristic differentiates an AC wave from a DC wave in terms of comparison?

    <p>Effective value</p> Signup and view all the answers

    More Like This

    Use Quizgecko on...
    Browser
    Browser