Physics - Chemical Effects of Electric Current

Introduction

• Most of the liquids that conduct electricity belong to solutions of acids, bases and salts.

• Some liquids are good conductors and some are poor conductors of electricity.

• The passage of an electric current through a conducting liquid normally causes chemical reactions and the resulting effects of this reaction are known as chemical effects of currents.

• The process of depositing a layer of any desired metal on another material by means of electricity is known as electroplating.

• Electroplating is commonly used in industry for coating metal objects with a thin layer of a different metal.

• Coating of zinc is applied on iron to protect it from the corrosion and formation of rust.