Review, Final Exam
Physics 122, Autumn 05
I.
Electrostatics:
A) Coulomb’s Law: calculate forces on point charges.
B) Electric Fields: find electric fields of point charges and charge distributions
Examples: charged ring, charged disk, line charge
C) Gauss’ Law: calculate electric field using symmetries and Gauss’ law.
Examples: infinite sheet, infinite line charge, infinite cylinders, spheres and shells.
D) Motion of charged particle in electric field.
E) Electric Potential Energy and the Work-Energy Theorem
F) Electric Potential:
1)
Calculate Potentials from charge distributions.
Examples: charged ring, charged disk, line charge
2) Calculate Potentials and potential differences from electric fields.
Examples: infinite line charge, parallel plate cap, spherical charge
distribution, cylindrical charge distribution.
2) Know how potential, potential difference, potential energy, work and
kinetic energy relate.
G) Electric Dipoles
H) Find energy density in an electric field
II.
Circuits:
A) Current, current density
B) Resistance, resistivity, Ohms Law, series and parallel resistors
C) Power and energy stored in circuits and circuit elements
D) Capacitance and RC circuits
1) Find capacitance of different circuit elements: parallel plates, concentric spherical shells, and
cylindrical conductors
2) Find time constant, current, potential, and charge in an RC circuit
E) Inductance. LR circuits:
1) Find self-inductance of circuit elements: solenoid, coaxial cable.
2) Find time constant, current, and potential in LR circuit
F) DC Circuits and AC circuits
1) Know differences between them
2) What is an rms (root-mean-square) value?
3) What is a transformer? (NOT the exciting toy and cartoon from the 1980’s)
Course Review, Phys 122
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III.
Magnetism:
A) Name and describe the three main types of magnetic materials.
B) Find force on moving charge and currents in magnetic field. What is the work done by a magnetic
field?
C) Motion of charged particle in a magnetic field.
D) Biot-Savart Law:
Example: Calculate B field of current loop, half loop.
E) Ampere’s Law: Use symmetry and Ampere’s law to calculate B field of currents:
Example: Find B of infinite line current, current sheet, solenoid, torus, cylindrical currents.
F) Electromagnetic Induction:
1) Use Faraday’s law to calculate induced emf
2) Use Lenz’s law to find direction of induced current and B field
G) Describe RHR #1, #2, #2.5, #3 and state when each is used.
H) Magnetic Dipoles
I)
IV.
Energy density in a magnetic field.
Maxwell’s Equations and Electromagnetic Waves.
A) Write down Maxwell’s equations and describe what each means.
B) Which one was modified by Maxwell and why?
C) Describe an electromagnetic wave and give its speed.
D) Give examples of electromagnetic waves.
Course Review, Phys 122
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