EMF, tension, courant

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Module 2: Sources d'énergie électrique

# EMF, tension, courant

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• Notes d'étude
• Révisions du sujet
 Rachel B. 0 0 Very Interesting.
 Sangip G. 3 2 What are the EMF,voltage and current
 Mohmed A. 2 0 what is adiffrent bettwen voltae and current
 Ikemenjima F. 0 0 we have sources of electricity as EMF,voltage and current
 Soumik B. 0 0 good
 John C. 1 0 Physics Lesson & definitions for the benefit of the creators of this product: Voltage = Joules / Coulomb The "cartoon " depicting the analogy of a water basin and E.M.F. of an electrical ckt. is partially correct, but inaccurately portrayed since mention is made of E.M.F. & "pressure" . A more accurate physical analogy, the elevation of the open basin or (accumulator) follows E=MGH ) would be representative of Potential Energy as analog to E.M.F. & thus a better illustration, not an open pipe / as shown fed by a pump, as implied in the illustration. The classical E.M.F. in such an electrical circuit is independent of the gravitational field.
 Johnny K. 3 1 this course is not at all clear, the grammar of the paragraphs and the way everything is worded makes it quite confusing
 Jonathan G. 3 1 Did anyone who speaks English as a first language check over this course before it was put online? This is very poorly put together and totally distracting.
 Ifesinachi N. 0 0 What is emf,Voltage and Current?
 Ifesinachi N. 3 1 Emf means Electromotive force. current is the the flow of electricity through a device. Voltage is a quantitative expression of the potential difference in electrical charge between two points in an electrical field.