Current Density - Mini Pencil Emergency Light

Amira Zulkiflli, Abdulrahman Ali Mohammed Hussein Bin-Break, Diviyadevi Paramasivam, Pavithiran Sathis Kumar, Noorzana Binti Khamis , Nina Diana Nawi, Fatin Aliah Phang Abdullah, Jamil Abedalrahim Jamil Alsayaydeh, Jaysuman Pusppanathan*

Abstract

This experiment was conducted to understand the fundamentals of electric fields in material space. The material involved in this study was graphite and the properties of graphite which made it a great current conductor. Graphite is a soft material made up of carbon. Graphite has incredible metallic properties including thermal conductivity and electrical conductivity. The materials involved in this experiment were pencils, LED, batteries and connecting wires. In this study, graphite in pencils were used to illustrate the current production. 2 pencils were combined and added with an LED in one end and a battery-power source at the other. When the power supply is turned on current starts to follow through the graphite element making the LED light up.