Ohm's Law of Electricity

Introduction

The most fundamental equation in electrical circuits is called Ohm's Law. While doing experiments on how well metals conducted electricity, German physicist Georg Ohm discovered the law in 1827. Ohm's Law is the equation V = I R and is used in both AC and DC circuits. Knowing two items in this equation allows you to calculate the third. For many conductors of electricity, the electric current which will flow through them is directly proportional to the voltage applied to them. When a microscopic view of Ohm's law is taken, it is found to depend upon the fact ...