How Refrigerator Works ? what is working Principle of refrigerator ?

Today we are gonna to show you how refrigerator works and what is the basic principle just read carefully this artical
we know that refrigerator contain a gas named as Tetrafluoroethane which starts from compressor . compressor compress it and it will become liquid and its temperature increases due to compression then it goes to outsider fan which reduces the temperature of this liquid and then transfer into internal part of Refrigerator where it expands which the help of nozzles and then remaining liquid goes to condenser and then go to the compressor a=in this way a cycle completes 

how to calculate your electricity bill on your fingure tips? and list of appliances and energy consumed by them.

This chart represents the energy consumption in our homes by appliaces and this is limited list of home appliaces you can find more or if you need the rating of any thing just post the comment you will soon recieve a short meassage by our experts.
This chart shows the appliance name, the power rating in watts, the operating hours per day and last column contains the number of units that will be consumed by that appliance in the whole month from this chart you can easily calculte the electricity bill and you can compare with your orgional electricity bill which is provided by you electric suply company.