Category: 14. Energy

Introduction Various types of energy sources are there that can be divided into different parts. The sun is not only the source of energy. Geothermal energy, nuclear energy, biomass, wind energy, and petrol are some of the other important sources from which energy can be extracted. Based on the characteristic of sustainability, energy is classified…

Introduction A photovoltaic cell is also known as a PV cell, an electrical device that is used for converting solar energy into electric energy, and that is how the cell and the solar energy are connected. To use solar energy, PV cells are most needed. Solar energy is radiation that directly comes from the sun…

Introduction Calorie and Joule are one kind of them. It is proved that when the rate of calories is increased then the value of the joules is increased with a growth rate of 4.2. On the other hand, in case of the value of the calorie decreases then the value of the joule increases at…

Introduction With rapid development and modernization, the need for abundant low-cost energy is growing tremendously. To fulfil these energy requirements, humans exploit energy resources in various ways. Although the various techniques and procedures followed in this process impact the environment positively, the negative impacts are much more harmful and of major concern to the sustainable…

Introduction Every matter in the universe is composed of tiny particles called molecules. They attract each other with some attractive force. There exists an intermolecular force of attraction between molecules. Every object in the universe cannot move without external force. If force is applied to the object. It will be stored inside and then released…

Introduction Biogas energy is obtained from biomass through physical and chemical process. The Law of energy conservation says that – Total energy during any chemical or physical process for an isolated system is always conserved. It means it doesn’t increase or reduce but merely changes its form. But we often hear that the world is going…