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Railways General Science & Technology Semiconductor Electronics Sample Paper Semiconductor Electronics Sample Test Paper-12

  • question_answer
    An oscillator is nothing but an amplifier with

    A)  Positive feedback

    B)  negative feedback

    C)  Large gain        

    D)  no feedback

    Correct Answer: A

    Solution :

    [a] A positive feedback from output to input in an amplifier provides oscillations of constant amplitude.


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