SOLAR MOBILE CHARGER - SlideShare
SOLAR MOBILE CHARGER. 1. G.V.R & S COLLEGE OF ENGINEERING&TECHNOLOGY Departmentof ECE by KUNDAN KUMAR ARUN KUMAR 132W1A0432 132W1A0407. 3. The sun is a star made up of hydrogen and helium gas and it radiates an enormous amount of energy every second. Solar cell works on the principle of photovoltaic effect.