Potential difference class 12

Electrostatic Potential The effort required to move a unit positive charge (without acceleration) from infinity to any point in an electrostatic field is represented by the electrostatic potential (V) at that location. In this article, we will be studying electrostatic potential. Table of Contents • • • • • Electrostatic Potential of A Charge Let us consider a system of charges consisting of static charges, that is, charges fixed at a position that does not undergo any type of motion. In this system, we define the potential energy of a charge in terms of the work done on the charge. As we know, when a charge, say q, is placed in an electric field E (the electric field at any point due to the charge configuration of the system), it experiences a force proportional to the magnitude of its charge equal to q×E. If we divide the resultant Taking an example of a charged particle being brought from a point A to a point B in the electric field, the work done by an external force in bringing this unit positive charge from point A to B is given by, \(\begin \) Where V A and V B is the electrostatic potential of the particle at points A and B, respectively, U A and U B are the potential energy of the particle at points A and B. Q is the magnitude of the charge. As we know, the actual value of the potential at any point holds no significance, and we would rather calculate the potential difference between two points for any given system of charges. Now, as we know, the Electrostatic p...

For creating the electric current motion, you explained that positive terminal of the batery pushes the charges away from them, and the negative terminal of the battery pulls towards it. I understand that, but what if instead of having a negative terminal we have another positive terminal but "more positive"? I think will still have a potencial difference because the charges of the terminals will be different,but, will both positive terminals push the positives charges away from them? (sorry for my bad english) considering that there are two like terminals at the same battery, any one of the two possibilities could occur: The battery will itself not work considering that both the poles will push away the electrons there will be an extreme concentration of electrons in one particular region of the conductor. U can consider the battery as a pump. The pump takes( pushes) the water from the ground to a higher level above the ground. The water can't go by itself to higher level. So the pump does work to take (push)it to the higher level. But u see that if water is allowed to flow, it can flow by itself to the lower level because it's the natural tendency of every thing. Here the gravity takes it down (pulls it). Now if the pipe which contains water has both ends at the same level there is no water flow Cox both points are at the same potential, there is no force acting to pull or push it. In a cell due to the chemical reactions that happen inside ,electrons will be excess over ...

the difference in potential between two points that represents the work involved or the energy released in the transfer of a unit quantity of electricity from one point to the other Electric Potential Difference The electrical potential difference is defined as the amount of work done to carrying a unit charge from one point to another in an electric field. In other words, the potential difference is defined as the difference in the electric potential of the two charged bodies. When a body is charged to a different electric potential as compared to the other charged body, the two bodies are said to a potential difference. Both the bodies are under stress and strain and try to attain minimum potential Unit: The unit of potential difference is volt.