TO CONSTRUCT A PORTABLE MOBILE CHARGER WHICH SUPPLIES 7.5V TO CHARGE SAMSUNG GALAXY NOTE I. REMEMBER TO CHANGE THE NAME AND Pics FOR AUTHENTICATION. ...
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Physics Investigatory Project
PHYSICS INVESTIGATORY PROJECT
PHYSICS INVESTIGATORY PROJECT
A IM:TO CONSTRUCT A PORTABLE MOBILE CHARGER.
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PHYSICS INVESTIGATORY PROJECT
NAME-ASHAR FATMI
CERTIFICATE THIS IS TO CERTIFY ASHAR FATMI OF CLASS XII-A HAS PERFORMED THIS PROJECT —“PORTABLE MOBILE CHARGER” UNDER MY SUPERVISION. ___________________ PRIYA MENDIRATTA Page 2
PHYSICS INVESTIGATORY PROJECT
PHYSICS TEACHER BHATNAGAR INTERNATIONAL SCHOOL
ACKNOWLEDGEMENT It is my duty to record my sincere thanks and deep since of gratitude to my respected teacher and lab assistants. I have benefited a lot from suggestions given to me by school faculty. I am indebted to my guide Mr.Brijmohan and Mr. Sharma my lab assistants for their constant support in the implementation of the project
AIM TO CONSTRUCT A PORTABLE MOBILE CHARGERWHICH SUPPLIES 7.5V TO CHARGE SAMSUNG GALAXY NOTE I.
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PHYSICS INVESTIGATORY PROJECT
APPARATUS PCB BOARD BATTERY TRANSISTOR {7805 PNP-IC} LED REISTOR {1.5 K approximately} BATTERY CAP USB PORT CONNECTING WIRE SOLDERING IRON SOLDERING WIRE
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PHYSICS INVESTIGATORY PROJECT
THEORY MOBILE CHARGER:A device used to charge the battery of a phone. It converts the high voltage supply to a lower voltage so the phone could get charged. RESISTORS:The barrier to the flow of current is called resistance. The devices which provide resistance is called resistor. TRANSISORS:It is a semiconductor device used to switch electronic signal into electric power. It is Page 7
PHYSICS INVESTIGATORY PROJECT
composed of semi conductor material with at least 3 terminals for conductance of external circuits. LED:Light emitting diode is two lead semi conductor light source. It resembles pnjunction diode, which emits light when activated. BATTERY:It is a device containing one or more cells that convert chemical energy into mechanical energy.
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PHYSICS INVESTIGATORY PROJECT
CUIRCUIT DIAGRAM
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PHYSICS INVESTIGATORY PROJECT
RESULT
Hence Samsung galaxy note-I is charged by my portable mobile charger.
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PHYSICS INVESTIGATORY PROJECT
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PHYSICS INVESTIGATORY PROJECT
PRECAUTIONS The connections should be neat, clean and tight. Battery should be ideal. Resistance should be of the given resistance.
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PHYSICS INVESTIGATORY PROJECT
SOURCES OF ERROR
Resistance is greater or lesser than required. Transistor is broken. Battery is not ideal. U.S.B port is broken.
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PHYSICS INVESTIGATORY PROJECT
Voltage supply greater than required.
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PHYSICS INVESTIGATORY PROJECT
BIBLIOGRAPHY
WIKIPEDIA.COM YOUTUBE.COM CONCEPT OF PHYSICS BY- H C VERMA.
