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Oscillator

Quiz by Afidah Abdul Malek - Polimas

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10 questions
Show answers
  • Q1
    Which of the following oscillator circuits is known for its ability to generate a sinusoidal output using a parallel LC circuit?
    Crystal oscillator
    Hartley oscillator
    Phase-shift oscillator
    Colpitts oscillator
    30s
  • Q2
    What is the primary characteristic of a Hartley oscillator?
    It uses a tapped inductor for its feedback network.
    It has a phase shift of 90 degrees.
    It employs a crystal for frequency stabilization.
    It uses a single amplifier for negative feedback.
    30s
  • Q3
    Which type of oscillator is known for providing high frequency stability and is commonly used in timing applications?
    Crystal oscillator
    Phase-shift oscillator
    Colpitts oscillator
    Hartley oscillator
    30s
  • Q4
    What is the main principle behind a phase-shift oscillator?
    It relies on a crystal for frequency stability.
    It uses phase-shifting networks to provide the necessary 180-degree phase shift.
    It generates oscillations through LC resonant circuits.
    It has a feedback loop involving tapped inductors.
    30s
  • Q5
    In a Colpitts oscillator, what is the role of the capacitors in the feedback loop?
    They serve as a resonant tank circuit.
    They provide the necessary gain for oscillation.
    They stabilize the output frequency during variations.
    They form a voltage divider that determines the frequency of oscillation.
    30s
  • Q6
    Which oscillator circuit is most commonly used in radio frequency applications due to its ability to generate high-frequency signals?
    Phase-shift oscillator
    Hartley oscillator
    Colpitts oscillator
    Crystal oscillator
    30s
  • Q7
    What is a common application of a crystal oscillator?
    It is used in audio amplifiers for sound modulation.
    It is used in television transmitters for image processing.
    It is used in clocks and timers for precise frequency control.
    It is used in voltage regulators for power supply.
    30s
  • Q8
    What type of feedback is primarily used in the Colpitts oscillator?
    No feedback
    Positive feedback
    Direct feedback
    Negative feedback
    30s
  • Q9

    What is the function of Oscillator?

    Maintain level of frequency

    Amplify the frequency

    Generate a certain level of frequency without external source

    provide more stable frequency

    30s
  • Q10

    Which one have  a couple of inductor in circuit?

    amstrong oscillator

    hartley oscillator

    colpitt oscillator

    crystal oscillator

    30s

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