What is voltage?

  There are two types of charges namely positive charge and negative charge. As we all know these charges are opposite and they attract . A work is done to separate these two charges through a specific distance. When these two charges are separated from each other certain amount of energy is stored in them in … Read more

What is resistance?

  Resistance is the property of a material to oppose the flow of electrons through it (current). When electrons flow through a material, they collide with the other atoms in the material and lose its energy. The loss of energy results in the drop of potential energy across the material.  R = (V/I) V = potential … Read more