NEET Physics Semiconducting Devices NEET PYQ-Semiconducting Devices

  • question_answer
    Zener diode is used for:                                                                                                       [AIPMT (S) 2005]

    A)  producing oscillations in an oscillator       

    B)  amplification

    C)  stabilization      

    D)  rectification

    Correct Answer: C

    Solution :

    Zener diode is a silicon crystal diode having an unusual reverse current characteristic which is particularly suitable for voltage regulating purposes. Due to this characteristic, it is used as voltage stabilizer in many applications in electronics.
                Note:    Transfer characteristic of zener diode is shown in the figure given below:
               


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