Exam 2 Review 3/23/09 1 Exam 2 Wed. Mar. 25, 5:30-7 pm, 2103 Ch (here) Covers 27-33 + lecture, lab, discussion, HW 8 1/2 x 11 handwritten note sheet (both sides) allowed!Topics • 27 Electric Field: The electric force field is associated with static charge. • 28 Gauss’s Law: Electric field flux is conserved. • 29 Electric Potential: Electric work implies potential energy • 30 Potential and field: Capacitors store electric energy. • 31 Current and Resistance: Steady current density follows electric field in simple circuits. • 32 Fundamentals of circuits: Discrete independent electric devices connected through wires may be analyzed • 33 Magnetic fields: The magnetic force field is associated with charges in motion (current). 3/23/09 2Demonstrations Wednesday, Feb. 11: Electric Fields Chapter 27 Handout capacitors fixed and variable Wednesday, Feb 18: Gauss's law Chapter 28 Cavendish spheres Lightning rod with round brass ball cloud Faraday ice pail, tapered cylinder 3/23/09 3Demonstrations Monday, Feb. 23: Electric Potential Chapter 29 Battery charges capacitor discharges through light bulb H and He Balloons (chemical energy) Wednesday, Feb 25: Potential and field Chapter 30 Large capacitor to blow up aluminum foil Van de graaff Electrostatic generator 3/23/09 4Demonstrations Monday, Mar. 2 Electric current and Resistance Chapter 31 Wooden board with nails to show electron scattering in lattice (Knutson) Parallel and series light bulbs Temperature dependent resistance, LN2 and light bulb Superconductors Wednesday, Mar. 4, Fundamentals of circuits Chapter 32 Ammeter and volt meters RC circuit with light bulbs to show charge/discharge Series and parallel light bulbs Marx generator 3/23/09 5Demonstrations PMTs Monday, Mar. 9, Magnetic fields and forces Chapter 33 Magnets and compass needle array Magnets and iron filings Small tube with electron beam (high voltage supply), bend beam with magnet Plasma discharge: distort with hand-held magnet Force on wire from permanent magnet (drawn into field, or repelled) Attraction, repulsion of current-carrying wires (vertical deflection apparatus) 3/23/09 6Labs Week 6: Electric fields Week 7: Current and circuits Week 9: Capacitors and RC decay 3/23/09 7 Other work Mastering Physics Homework Discussion section group problems Discussion section quizzesGeneral PrinciplesGeneral PrinciplesImportant ConceptsImportant ConceptsApplicationsGeneral PrinciplesGeneral PrinciplesImportant ConceptsImportant ConceptsApplicationsApplicationsGeneral PrinciplesGeneral PrinciplesGeneral
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