22 June, 2014

Voltage Troubleshooting

Quote To understand the voltage you need to understand the concept of potential energy. . Now what is potential energy???? Potential energy at the particular point is the amount of the work done in moving a charge from an infinite position to a given point in the electric field. . . Quote sorry are you saying potential energy is the amout of work done of moving a charge from one location to other? When corrent goes through load there is less energy and potential energy . What does electric field have to do with it. Well no voltage than no current, the resistance try to slow down or stop the voltage . Do you know what I found? Voltage : The voltage between two points is a short name for the electrical force that would drive an electric current between those points. Specifically, voltage is equal to energy per unit charge. In the case of static electric fields, the voltage between two points is equal to the electrical potential difference between those points. In the more general case with electric and magnetic fields that vary with time, the terms are no longer synonymous. Electric potential is the energy required to move a unit electric charge to a particular place in a static electric field. ======================== Well no voltage than no current, the resistance try to slow down or stop the voltage . I would not accept this. because Current Exists when voltage = 0. Example. in a short circuit. current is very high. but voltage is zero. Voltage Exists when current = 0. Example. in an open circuit. voltage = Potential difference (Voltage) between the two terminals of the open circuit. but between those open terminals. current=0. Resistance. let me explain. suppose you have a path to walk. the path is smooth. then you can easily walk. if I put throw glass pieces on your path. and ask you to walk. you will still walk but your speed is reduced. when I tell you to walk again when I throw more and more glass pieces. your speed will reduce considerably and slowly. you cannot walk anymore. similarly. when resistance increases the current cannot flow because the path is narrowed. So when the point charge cannot go faster. the potential difference decreases considerably. so the voltage decreases.. Load is also a type of resistance. just like a TV. when there is no power can TV be on?? No right. so definitely the voltage and current decreases considerably. depending on the load. potential energy is the amout of work done of moving a charge from one location to other? Its not potential energy. its electrical energy

The fundamentals of current and voltage. Explanations of the units Amps, Volts, Coulombs per second and Joules per Coulomb. Helpful articles:


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