Answer Posted / monte

AT FIRST WE HAVE TO KNOW WHAT IS A DIODE?SIMPLE.. CONSISTS OF TWO TYPE OF SEMICONDUCTOR 1)n-TYPE &2)P-TYPE COMBINED TOGETHER.NOW FOR A ORDINARY DIODE THE DOPING LEVEL IS LOWER THAN THAT OF ZENER DIODE. AS A RESULT AT THE REVERSE BIAS CONDITION AFTER APPLYING A CERTAIN VOLTAGE THE DIODE COMES TO THE BREAKDOWN REGION AND BLOWS UP .BUT FOR A ZENER DIODE IS ACTUALLY WORKS IN THIS BREAKDOWN REGION(AS IT IS DESIG TO DO SO!!!) AS A RESULT IT RUNS EVEN AFTER APPLYING HIGH REVERSE BIAS VOLTAGE.
ANOTHER POINT THAT IT IS ACT LIKE A VOLTAGE REGULATOR.AND THE O-DIODE IS ACT AS A RECTIFIER.ALLTHE BEST.:-)

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