LSU PHYS 2102 - Lecture Notes (24 pages)

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Lecture Notes



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Lecture Notes

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Lecture Notes


Pages:
24
School:
Louisiana State University
Course:
Phys 2102 - Gen Phys For Tech St
Gen Phys For Tech St Documents

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Physics 2102 Jonathan Dowling Physics 2102 Lecture 08r THU11FEB FIRST MIDTERM REVIEW A few concepts electric force field and potential Electric force What is the force on a charge produced by other charges What is the force on a charge when immersed in an electric field Electric field What is the electric field produced by a system of charges Several point charges or a continuous distribution Electric potential What is the potential produced by a system of charges Several point charges or a continuous distribution Plus a few other items Electric field lines equipotential surfaces lines go from ve to ve charges lines are perpendicular to equipotentials lines and equipotentials never cross each other Gauss law q 0 Given the field what is the charge enclosed Given the charges what is the flux Use it to deduce formulas for electric field Electric dipoles field and potential produced BY a dipole torque ON a dipole by an electric field potential energy of a dipole Electric potential work and potential energy work to bring a charge somewhere is W qV signs Potential energy of a system negative work done to build it Conductors field and potential inside conductors and on the surface Shell theorem systems with spherical symmetry can be thought of as a single point charge but how much charge Symmetry and infinite systems Conductors and insulators Will two charged objects attract or repel Can a charged object attract or repel an uncharged object What is the electric field inside a conductor What is the direction of the electric field on the surface of a conductor What happens to a conductor when it is immersed in an electric field Electric forces and fields point charges Figure 22N 14 shows an arrangement of four charged particles with angle 34 and distance d 2 20 cm The two negatively charged particles on the y axis are electrons that are fixed in place the particle at the right has a charge q2 5e a Find distance D such that the net force on the particle at the left due to the



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