Energy Is a capability of doing work or ability of doing work. In physics, the capacity for doing work, It may exist in potential, kinematic , thermol , electrical, chemical , nuclear, or other various forms.
How electricity formed? By the force or pressure that pushes or forces electrons to move through the conductor in one direction. Source of electricity Friction Chemical reaction Magnetism Heat Light Mechanical pressure How above sources of electricity works? 1.Friction When certain materials are rubbed against each other, for instance, silk and glass rod or when you comb your hair (plastic and human hair). The atoms of both materials lose or gain an electron hence one of the two materials becomes positively charged and the other negatively charged. 2.Chemical reaction When two pieces of none similar metals are immersed into a chemical solution, the chemical process known as electrolysis will take place between metals and solution. This will cause one metal to lose an electron and the other to gain and hence pressure of force will be created between the two terminals of metals act as a source of electricity (The device called Cells or battery) 3.Heat This h...