AP Free Response Question
2010 C2 E&M
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In the circuit illustrated above, switch S is initially open and the battery has been connected for a long time.
(a) What is the steady-state current through the ammeter?
(b) Calculate the charge on the 10
m
F capacitor.
(c) Calculate the energy stored in the 5.0
m
F capacitor.
The switch is now closed, and the circuit comes to a new steady state.
(d) Calculate the steady-state current through the battery.
(e) Calculate the final charge on the 5.0
m
F capacitor.
(f) Calculate the energy dissipated as heat in the 40-ohm resistor in one minute once the circuit has reached steady state.
Topic Formulas
Description
Published Formula
Ampere's Law
Biot-Savat Law
capacitance
capacitance (dielectric)
capacitors in parallel
capacitors in series
Coulomb's Law
current density
electric current
electric current
electric field
electric field strength
electric potential energy
energy stored in a capacitor
energy stored in an inductor
Faraday's Law
force ona current-carrying wire
Gauss' Law
induced emf (inductor)
induced emf (magnetism)
Joule's Law
magnetic field around a current-carrying wire
magnetic field of a solenoid
magnetic flux
magnetic force on a moving charge
motional emf
Ohm's Law
parallel-plate capacitor
potential and electric field strength
potential due to a collection of point charges
resistance in parallel
resistance in series
resistivity
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Mass of an Electron
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A Comparison of RC and RL Circuits
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A Guide to Biot-Savart Law
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A Special Case of Induction
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Ampere's Law
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An Introduction to DC Circuits
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Capacitors and Dielectrics
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Continuous Charge Distributions: Charged Rods and Rings
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Continuous Charge Distributions: Electric Potential
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Coulomb's Law: Beyond the Fundamentals
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Coulomb's Law: Suspended Spheres
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Derivation of Bohr's Model for the Hydrogen Spectrum
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Dielectrics: Beyond the Fundamentals
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Electric Field Strength vs Electric Potential
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Electric Fields: Parallel Plates
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Electric Fields: Point Charges
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Electricity and Magnetism Background
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Electrostatics Fundamentals
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Famous Experiments: Millikan's Oil Drop
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Filaments
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Gauss' Law
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Inductors
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Kirchhoff's Laws: Analyzing Circuits with Two or More Batteries
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Kirchhoff's Laws: Analyzing DC Circuits with Capacitors
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Magnetic Field Along the Axis of a Current Loop
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Magnetism: Current-Carrying Wires
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Maxwell's Equations
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Meters: Current-Carrying Coils
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Parallel Plate Capacitors
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RC Time Constants
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RL Circuits
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Shells and Conductors
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Spherical, Parallel Plate, and Cylindrical Capacitors
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Torque on a Current-Carrying Loop
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Drill: Electrostatics
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Electrostatics Point Charges Review
Worksheet:
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The Circuit Rider
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The Electrostatic Induction
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Coulomb's Law
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DC Currents
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Electric Potential
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Electric Power
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Electrostatics: Induction and Conduction
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Ohm's Law
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Parallel Circuits
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Power Production
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Power Transmission
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RIVP Charts #1
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RIVP Charts #2
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Series Circuits
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Brightness
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Electric Potential vs Electric Potential Energy
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Electrostatic Attraction
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Light and Heat
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Lightning
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Parallel Circuit
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Photoelectric Effect
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Potential
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Series Circuits
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Shock!
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Van de Graaff
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Water Stream
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Capacitors - Connected/Disconnected Batteries
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Charged Projectiles in Uniform Electric Fields
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Combinations of Capacitors
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Coulomb Force Extra Practice
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Coulomb's Law: Some Practice with Proportions
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Electric Field Drill: Point Charges
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Electric Fields: Parallel Plates
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Electric Potential Drill: Point Charges
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Electrostatic Forces and Fields: Point Charges
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Electrostatic Vocabulary
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Induced emf
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Introduction to R | I | V | P Charts
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Kirchhoff's Laws: DC Circuits with Capacitors
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Kirchhoff's Laws: Sample Circuit
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Parallel Reading - The Atom
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Resistance, Wattage, and Brightness
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Standard Model: Particles and Forces
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34A: Electric Current
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35A: Series and Parallel
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Advanced Capacitors
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Basic Capacitors
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Basic DC Circuits
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Electric Field Strength vs Electric Potential
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Multiple-Battery Circuits
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Textbook Set #6: Circuits with Multiple Batteries
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