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Physlets are back to life again! Last update 9-20-2019.

Charge, Charging, and Coulomb's Law

• Charge
• Four Charges
• Charged Rod and Soda Can
• An electroscope
• Conductors and Insulators
• Charging an Electroscope
• Conservation of Charge
• As Time Goes By
• Coulomb's Law
• The Magnitude of the Force Between Charges
• Coulomb's Law in 1-D
• Coulomb's Law in 2-D

Electric Field

• Field Lines and Field Vectors
• Field Line Question
• Field Vector Question
• A Test Charge
• Test Charge Questions
• The Parallel with Gravity
• Projectile Motion
• Electric Field from a Point Charge
• Electric Field from a Dipole
• Electric Field from Two Like Charges
• Motion of a Test Charge
• The Field from Multiple Point Charges
• Where is the Field Zero?
• Graphing Electric Field
• A Point Charge vs. a Line of Charge
• Field from a Line of Charge
• Field from a Ring of Charge
• A Charged Conductor vs. a Charged Insulator
• Field Near Conductors at Equilibrium
• Shielding

Gauss' Law

• Counting Field Lines
• Electric Flux
• Charge Density
• An Infinite Line of Charge
• An Infinite Sheet of Charge
• Parallel-plate Capacitor
• Spherical Symmetry
• What is on the Graph?
• Plotting field as a function of distance
• Concentric Spheres
• A Non-uniform Charge Distribution

Potential and Potential Energy

• Potential Energy for Point Charges
• Potential Energy in a Uniform Field
• Potential Energy in a Non-Uniform Field
• Electric Potential
• Potential in a Uniform Field
• Potential in a Non-Uniform Field
• Connecting Potential to Force
• Which Takes More Work?
• Releasing Two Charges
• A Charge and a Dipole
• Accelerating a Charge through a Potential Difference
• A Set of Point Charges
• Field and Potential for Charged Spheres
• Field and Potential for Concentric Spheres
• A Point Charge and a Charged Shell
• Potential from a Line of Charge
• Potential from a Ring of Charge

Capacitors

• Playing with a Capacitor
• Calculating Capacitance
• Energy in a Capacitor
• Capacitors in a Combination of Series and Parallel
• A Capacitor with a Dielectric
• The Dielectric Constant

DC Circuits

• A Microscopic Model of a Conductor
• Current
• Doubling Current
• Fluid Flow Analogy
• Resistance of a Coax Cable
• Resistors in a Combination of Series and Parallel
• Kirchoff's Loop Rule
• Applying Kirchoff's Rules
• RC Circuits
• Doubling R in an RC Circuit

Charges and Currents in Magnetic Fields

• Observing a Charge in a Magnetic Field
• Practice with the Right-Hand Rule
• Circular Paths
• Possible Paths of a Charge in a Uniform Magnetic Field
• Mass Spectrometer: Acceleration
• Mass Spectrometer: Velocity Selection
• Mass Spectrometer: Mass Separation
• Cyclotron
• The Hall Effect
• A Current Loop in a Uniform Field
• Torque on a Current Loop
• The Equivalent Bar Magnet
• Which Loop is Stable?
• A DC Motor
• Force Between Parallel Wires
• Three Wires
• A Current Loop in a Non-Uniform Field

Calculating Magnetic Fields

• Biot-Savart Law
• Field from a Straight Wire
• Field from a Long Straight Wire
• Field from an Arc of Current
• Field at the Center of a Loop
• Gauss' Law for Magnetism
• Ampere's Law
• Ranking the Loops
• Field from a Long Straight Wire
• Field Inside a Long Straight Wire
• Field From a Hollow Cylinder
• Concentric Cylinders
• Field from an Infinite Sheet of Current
• Field inside a Solenoid
• Field on the Axis of a Current Loop

Magnetic Materials

• Magnetic Moment of an Atom
• Ferromagnetic Domains

Faraday's Law

• Field from a Bar Magnet
• Changing Area
• Faraday's Law Example
• A Pictorial Approach to Lenz's Law
• Examples
• Increasing the Area of a Loop Near a Bar Magnet
• Motional emf Example
• A Moving Bar
• General Form of Faraday's Law
• Generators
• Faraday's Law Quiz

Inductance

• RL Circuit
• LC Circuit
• RLC Circuit

AC Circuits

• Just a Resistor, just a capacitor, or just an inductor
• Effective Resistance
• R and C, or R and L
• Filters
• Dimmer Switch
• The Impedance Triangle
• RLC Series Circuit

EM Waves

• EM Waves
• Sample EM Wave Problem
• Visible Spectrum
• AM and FM Radio

Geometrical Optics

• Reflection of Light
• A Plane Mirror
• Spherical Mirrors
• Example Mirror Problems
• Index of Refraction
• Refraction
• A Model of Refraction
• Huygen's Principle
• Refraction and Total Internal Reflection
• Dispersion
• A Rainbow
• Lenses
• Example Lens Problem
• The Human Eye

Interference and Diffraction

• Interference from Two Sources
• Single Slits and Double Slits
• More than Two Sources
• Intensity with More than Two Sources
• Spectroscopy with a Diffraction Grating
• Intensity for the Double Slit
• A Prism and a Diffraction Grating
• The Rayleigh Criterion

Thin-film Interference

• Reflections
• Thin-film Interference
• Another View
• Newton's Rings

Polarized Light

• Brewster's Angle
• Malus' Law

Modern Physics

• Time Dilation
• Blackbody Radiation
• Photoelectric Effect
• Compton Effect
• Wave-Particle Duality
• de Broglie's justification of Bohr's assumption
• Energy levels for hydrogen
• Radial functions
• Probability density clouds
• Radioactive decay

Last modified 9-20-2019, bringing the Physlets back to life again

Modified 5-15-2015, updated with a signed jar file for every simulation