Exam 2 Review

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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).

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Demonstrations 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

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Demonstrations 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

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Demonstrations 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 5

Demonstrations

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)

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Labs Week 6: Electric fields

Week 7: Current and circuits

Week 9: Capacitors and RC decay

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Other work Mastering Physics Homework Discussion section group problems Discussion section quizzes

General Principles

General Principles

Important Concepts

Important Concepts

Applications

General Principles

General Principles

Important Concepts

Important Concepts

Applications

Applications

General Principles

General Principles

General Principles

Applications

Applications

Applications