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Notes_for_Lecture-4_01-27-11

# Notes_for_Lecture-4_01-27-11 - Lecture 4 Electric Potential...

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Lecture 4 Electric Potential

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New Concepts: Electric potential Electric potential energy Potential due to a point charge Potential due to a group of point charges superposition Potential due to an electric dipole Additional skills to learn: Calculating the electric potential from the field Calculating the field from the potential
( ) Consider an electric charge moving from an initial position at point A to a final position at point B under the influenc f i x f i x o U U U W F x dx q Electric Potential Energy : e of a known electric field . The force exerted on the charge is: o f f o i i E F q E U F ds q E ds

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A B P P V E ds Electric Potential V Units of : J/C known as the "Volt" V