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Part of Made in India,
Design Innovation
Workshop,2015
A	
  Fresh	
  New	
  Experience	
  in	
  
Project-­‐Making	
  &	
  ...
PHYSICSINVESTIGATORY
PROJECTON
WORKINGOFZENERDIODE
Do	
  you	
  know	
  that	
  there	
  are	
  special	
  diodes	
  that	
  conduct	
  
even	
  in	
  reverse	
  bias	
  mod...
Have	
  a	
  look	
  at	
  what	
  we	
  provide	
  in	
  our	
  Project	
  Kit!
CoolJunk	
   is	
   India's	
   fastest	
...
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Physics Investigatory Project on Working of Zener Diode.

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Physics Investigatory Project on Working of Zener Diode.

  1. 1. Part of Made in India, Design Innovation Workshop,2015 A  Fresh  New  Experience  in   Project-­‐Making  &  Learning!
  2. 2. PHYSICSINVESTIGATORY PROJECTON WORKINGOFZENERDIODE
  3. 3. Do  you  know  that  there  are  special  diodes  that  conduct   even  in  reverse  bias  mode?  These  diodes  are  called  the   zener  diodes  which  can  be  used  as  voltage  regulators,   shunt  regulators  and  surge  protectors  to  limit  the   transient  voltage  spikes.  You  can  test  out  its  func?oning   in  forward  and  reverse-­‐bias  modes. This  project  is  divided  into  two  phases.    In  the  first   phase,  you  will  need  a  breadboard,  zener  diode,  an   LED,  a  resistor,  a  mul?meter  and  a  few  connec?ng   wires.  The  orange  side  of  the  zener  diode  is  its  p-­‐side   and  black  stripe  represents  its  n-­‐side.    The  connec?ons   are  much  such  that  the  posi?ve  terminal  of  the  LED  is   connected  to  the  n-­‐side  of  the  diode.  On  the   comple?on  of  the  circuit  the  LED  glows.  The  voltage   across  the  zener  diode  was  measured.  It  was  observed   that  the  diode  needs  a  minimum  of  0.79V  to  allow  the   current  to  pass  through  it.   When  the  connec?ons  of  the  zener  diode  were   reversed,  the  LED  s?ll  glows.  The  voltage  across  the   zener  diode  was  measured.  It  was  observed  that  the   diode  needs  a  minimum  of  5.6V  to  conduct  in  reverse   biased  condi?on.    This  voltage  is  known  as  breakdown   voltage. In  the  second  phase,  you  will  need  a  preset,  a  zener   diode,  an  LED,  a  resistor  and  a  few  connec?ng  wires.  A   voltage  divider  circuit  was  made  using  a  preset  and  the   connec?ons  of  the  zener  diode  were  s?ll  reversed.  The   preset  was  rotated  ?ll  the  point  where  the  LED  stops   glowing  and  the  voltage  across  the  zener  diode  was   measured.    The  same  process  was  repeated  by  rota?ng   the  preset  to  the  point  where  the  LED  starts  glowing.   The  breakdown  value  is  printed  in  the  zener  diode,  the   diode  used  is  of  value  5V6  (i.e.  5.6V).  
  4. 4. Have  a  look  at  what  we  provide  in  our  Project  Kit! CoolJunk   is   India's   fastest  growing  DIY  (do-­‐it-­‐yourself)   kits   company   focused   on   project-­‐based   learning   in   science,  engineering  and   technology.  Having   20,000   users   in   India,  US,   Singapore,   Middle   East   and   New   Zealand,  the  CoolJunk  kits  are  known  for  quality,  innovaUon  and  high  producUon  value.  CoolJunk  has  been   featured   in   naUonal   and   internaUonal   journals   including   Wallstreet,   Yourstory,   Hindu   Business   Line,   NextBigWhat  and  was  tagged  as  the  coolest  Indian  start-­‐up  in  IAN  Bootcamp-­‐2011.   You  may  also  refer  to  the  video:  Introduc>on  to  Zener  Diode V-­‐I  Characteris>cs  of  Zener  Diode For  more  projects  visit  our  website:  CoolJunk   All  tools  and  components   in  one  box. Step  by  step  visual   instrucUons Detailed  experiment   theory CoolJunkCoolJunkCoolJunk Follow  us  on: CoolJunk

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