PHYSICS 182 Lecture Notes - Lecture 13: Electric Potential Energy, Electric Potential, Test Particle

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cerisebuffalo390

4 May 2017

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Document Summary

Phys182 lecture 13 connecting work and force with electricity. Electric potential energy: a function of position: force on a positive test charge q0 in electric field e, work is done by the force when the charge moves, work done by a conservative force is path-independent. Electric potential: a positive charge moves in a direction opposite to that of an electric field. What happens to the energy associated with the charge: the electric potential energy of the charge increases, and the kinetic energy decreases, a negative charge moves in a direction opposite to that of an electric field. What happens to the energy associated with the charge: the electric potential energy of the charge decreases, and the kinetic energy increases. U = q v: note: electric potential, like electric field, determined by source charges. Charge moving in a field: the electric field at point p due to a long negatively charged line has magnitude.

Related Questions

A point charge q = +40.0 μC moves from A to B separated by a distance d = 0.180 m in the presence of an external electric field of magnitude 275 N/C directed toward the right as in Figure P16.16. Find (a) the electric force exerted on the charge, (b) the work done by the electric force, (c) the change in the electric potential energy of the charge, and (d) the potential difference between A and B.