Part of Made in India,Design Innovation

Workshop,2015

A  Fresh  New  Experience  in  

Project-­‐Making  and  Learning

PHYSICS INVESTIGATORY PROJECT ON

RELAY AS AN OSCILLATOR

A  relay  is  an  electromagne0c  switch.  Do  you  know  that  we  can  use  it  to  build  oscilla0ons?  Consider  there  are  two  LEDs.  First,  one  of  the  LEDs  glow  and  then  it  gets  OFF.  Then  the  second  LED  glows  and  it  goes  off.  Then  the  first  one  again  glows  and  the  cycle  repeats  itself.  

In  this  circuit,  we  can  control  the  number  of  0mes  the  relay  gets  ac0vated  and  deac0vated  in  one  second.  This  circuit  uses  

a  capacitor,  two  LEDs,  a  relay  and  a  momentarily  push  switch.  When  the  switch  is  pressed,  the  current  oscillates  between  LEDs,  due  to  which  they  glow  alternately.  A  clock  sound  is  heard  periodically.  We  can  also  modify  the  circuit  to  speed  up  the  oscilla0ons.  

So,  get  ready  to  create  some  real  fast  oscilla0ons!

Have  a  look  at  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,  innova0on   and  high  produc0on  value.  CoolJunk  has  been  featured   in   na0onal   and   interna0onal   journals   including   Wallstreet,   Yourstory,   Hindu   Business   Line,  NextBigWhat  and  was  tagged  as  the  coolest  Indian  start-­‐up  in  IAN  Bootcamp-­‐2011.  

For  more  projects  visit  our  website:  CoolJunk  

Tools  and  Components  in  one  box.

Step  by  step  visual  instruc0ons

Detailed  experiment  theory

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