Electricity & Circuits

Circuits Simulations

Select an experiment to open the interactive sandbox.

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Coulomb's Law

Explore the fundamental law of electrostatics. Manipulate charges and distance to see how the electrostatic force changes in real-time.

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Charges and Fields

Explore electrostatic charges and field lines. Visualize electric field intensity and direction by placing charges on the screen.

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Ohm's Law

Discover the physical relationship between Voltage (V), Current (I) and Resistance (R). Watch electrons flow!

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Resistance in a Wire

Understand how length, cross-sectional area, and resistivity affect electrical resistance. Visualize the wire's geometry.

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Potential Divider & Potentiometer

Learn how to divide voltage using a sliding contact on a resistive wire. Explore potential gradients and variable resistance.

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Circuit Sandbox

Build complex circuits with wires, batteries, bulbs, and resistors. Explore series and parallel connections.

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Construction Kit: AC

Experiment with alternating current (AC) circuits. Visualize oscillating voltages and currents with capacitors and inductors.

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Kirchhoff's Laws

Master Kirchhoff's Current Law (KCL) and Voltage Law (KVL). Analyze complex node junctions and closed loops with interactive probes.

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Solenoid

Explore electromagnetic fields created by wire coils. Visualize magnetic flux lines in real-time.

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Toroid

Study the magnetic field of a donut-shaped coil. Learn why the field is confined inside the toroid.

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Capacitor Lab

Explore energy storage and parallel plate capacitors. Adjust plate separation and area to see the effect on capacitance.

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Electric Generator

Harness Faraday's Law! Use a rotating water or wind turbine to generate electricity from magnetic motion.

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Faraday's Law

Move a magnet through coils to induce current. Compare how the number of loops affects the brightness of the bulb.

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Magnetic Field & Fleming's Rule

Visualize the magnetic field around a wire and master Fleming’s Left-Hand Rule. Predict the direction of force on a current-carrying conductor.

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Calculus Grapher

Visualize the relationship between a function, its derivative, and its integral. Draw your own curves!

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Build a Nucleus

Construct atomic nuclei by adding protons and neutrons. Explore isotope stability, atomic mass, and the chart of nuclides.

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Photoelectric Effect

Shine light on a metal surface to eject electrons. Explore how frequency and intensity affect electron kinetic energy.

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Diode Lab

Explore how P-N junction diodes work. Understand forward/reverse bias, semiconductor doping, depletion regions, and the Shockley V-I equation with live animations.