PRE-QUIZ OSCILATOR

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10 questions

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- Q1What is the purpose of an oscillator circuit?To convert DC to AC powerTo amplify an AC signalTo filter out high-frequency noiseTo generate a continuous sinusoidal waveformTo attenuate a sinusoidal waveform30s
- Q2Which oscillator circuit uses a crystal to control the frequency?Colpitts oscillatorArmstrong oscillatorHartley oscillatorPhase shift oscillatorCrystal oscillator30s
- Q3Which oscillator circuit uses positive feedback to start and maintain oscillations?Crystal oscillatorColpitts oscillatorHartley oscillatorPhase shift oscillatorArmstrong oscillator30s
- Q4What is the characteristic of an oscillator circuit?It sustains the output waveform without any input signalIt amplifies the input signalIt converts AC to DC powerIt produces a constant DC voltageIt generates a square wave output30s
- Q5What is the formula for calculating the frequency of an oscillator circuit?Frequency = 1 / (RC)Frequency = 1 / (2 * π * √(LC))Frequency = 2 * π * √(LC)Frequency = (2 * π * L) / CFrequency = RC30s
- Q6Which oscillator circuit uses a phase shift network to provide positive feedback?Hartley oscillatorCrystal oscillatorPhase shift oscillatorColpitts oscillatorArmstrong oscillator30s
- Q7What is the main function of a sinusoidal oscillator circuit?To generate a continuous sinusoidal waveformTo convert DC to AC powerTo filter out high-frequency noiseTo attenuate a sinusoidal waveformTo amplify an AC signal30s
- Q8Which oscillator circuit uses a tapped inductor to provide positive feedback?Phase shift oscillatorCrystal oscillatorArmstrong oscillatorColpitts oscillatorHartley oscillator30s
- Q9What is the advantage of using a crystal oscillator in electronic circuits?Ease of implementationWide frequency rangeHighly stable and precise frequency outputLow power consumptionAbility to generate multiple frequencies simultaneously30s
- Q10Which oscillator circuit is known for its high frequency stability and low phase noise?Hartley oscillatorArmstrong oscillatorPhase shift oscillatorCrystal oscillatorColpitts oscillator30s