Compendium of Projects Exhibited during the 2nd NLEPC - Vol I

2012
nd
2
National Level
Exhibition
& Project
Competitions
WORKING PRINCIPLE
OF CELL PHONE
When a person talks on cellular phone, the voice message
get converted into radio waves. The radio waves ravel
through air until they reach a base station close by the
base station send the call across the communication
network after which the call reaches the intend receiver.
A base station in the vicinity of the mobile phone being
called sends radio awes for the receivers device to detect
them. The mobile phone of the receiver converts the
signals into voice and the phone call is made.
Details of the participant
Name
L. Jagdesh Kumar
Class
VIIth
16 Innovation in Science Pursuit for Inspired Research
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School Name & Address
SHIVA SAI HS, GARIVIDI MDL.
Name of the Mentor Teacher
CH Lakshmi Narayana
Name of the District & State
Vizainagaram, AP
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