JCECE Engineering JCECE Engineering Solved Paper-2003

  • question_answer
    A device for generating an alternating current of d desired frequency is known as:

    A)  an oscillator                      

    B)  an amplifier

    C)  a rectifier                           

    D)   none of these

    Correct Answer: A

    Solution :

    The oscillator may be defined as a circuit which generates an \[AC\] output signal without any externally input signal or a circuit which generates \[DC\] energy into \[AC\] energy at very high frequency. Amplifier is a device which increases the amplitude of the input signal. Rectifier is a circuit which converts \[AC\] to unidirectional pulsating output. In other words, it converts \[AC\] to\[DC\].


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