VARIATION OF CURRENT
USING A LDR
       A DISSERTATION REPORT
SUBMITTED TOWARDS PARTIAL FULFILLMENT
                   OF
          C.B.S.E. PRACTICAL
          Under the guidance of
              Ms. Manisha
            P.G.T. PHYSICS
             Submitted By-
              Himesh Jain
            Roll no:_____________
         DEPARTMENT OF PHYSICS
      V.M.SR.SEC.SCHOOL, FARIDABAD
          CANDIDATE’S DECLARATION
I hereby certify that the work which is being presented in this file entitled
“To Study The Variation Of Current Using a LDR” in partial
fulfillment of C.B.S.E. Practical examination and submitted in the
Department of Physics of V.M.SR.SEC.SCHOOL, Faridabad is an
authentic record of my own work carried under the supervision of Ms.
Manisha, P.G.T.- Department of PHYSICS, V.M.SR.SEC.SCHOOL,
Faridabad, Haryana.
I certify that the above statements made are correct to the best of my
knowledge and belief.
Name - Himesh Jain
Roll no. : ______________
                       Department of PHYSICS
                V.M.SR.SEC.SCHOOL- Faridabad
                            CERTIFICATE
This is to certify that the project entitled as
“To Study The Variation Of Current Using a LDR” is a record of
bonafied work carried out by Himesh Jain under my supervision &
guidance in partial fulfillment of the Practical examination from
V.M.SR.SEC.SCHOOL, Faridabad.
I have gone through the project work done by him & the work has been
found quite satisfactory.
                                                               Ms. Manisha
                                                          (P.G.T. PHYSICS)
                                                     Department of PHYSICS
                                              V.M.SR.SEC.SCHOOL, Faridabad
The viva-voice examination of Bhawnahas been held on _________________.
                   ACKNOWLEDGEMENT
I would like to express our gratitude towards all the people who have
contributed their precious time and efforts to help me in completing this project,
without whom it would not have been possible for me to understand and
implement the project.
  I   would    like   to   thank   Mrs.    Preeti   Saini    (Academic     Head),
V.M.SR.SEC.SCHOOL School and Ms. Manisha(P.G.T.), Department of
PHYSICS, for his guidance, support, motivation and encouragement throughout
the period this work was carried out. His readiness for consultation at all times,
his educative comments, his concern and assistance have been invaluable.
Name:      Himesh Jain
Roll no. : ______________
V.M.SR.SEC.SCHOOL, Faridabad
CONTENTS
  Candidate Declaration
  Certificate
  Acknowledgments
  INTRODUCTION                             1
  HALF & FULL WAVE RECTIFIER               2-6
    Working Of Half-Wave Rectifier         2
    Working Of Full-Wave Rectifier         3
    Principle Of Half-Wave Rectifier       3
    Principle Of Full-Wave Rectifier       4
    Forward and Reverse Biasing            4
    Mutual Inductance                      5
  COMPONENTS OF RECTIFIER                  7-9
    AC Source                              8
    Transformer                            8
    Diode                                  9
    Resistor                               9
  CHARACTERISTICS OF HALF WAVE RECTIFIER   10
    Efficiency                             10
  CHARACTERISTICS OF FULL WAVE RECTIFIER   11
    Rectifier Efficiency                   13
  Conclusion                               14
  Bibliography                             15