Electricity & Magnetism Mission
Build understanding from Coulomb's law through circuits, fields, and electromagnetic induction — the core of AP Physics 2.
9 activities · Work through in order for a complete lesson arc
Circuit Calculator
Calculate voltage, current, resistance, and power with Ohm's law. Build series and parallel resistor networks with step-by-step equivalent resistance.
Coulomb's Law & Capacitor Calculator
Calculate electrostatic force with Coulomb's law, parallel plate capacitance, and series/parallel capacitor combinations with SVG diagrams and step-by-step math.
Connects electric charge to force — Coulomb's law and capacitors.
Electric Field Visualizer
Place positive and negative charges on a canvas. See electric field arrows, field lines, and potential color maps update in real time.
Gauss's Law & Electric Flux Visualizer
Explore Gauss's Law with five charge distributions: point charge, infinite line, infinite plane, uniformly charged sphere, and uniformly charged cylinder. SVG cross-section visualization, E(r) graph, step-by-step KaTeX derivation, and presets for inside/outside Gaussian surfaces.
Magnetic Force Calculator
Calculate force on a current-carrying wire or moving charge in a magnetic field. SVG diagram with right-hand rule visualization.
RC/RL/RLC Circuit Analyzer
Analyze transient and AC steady-state behavior of RC, RL, and RLC circuits. Visualize voltage and current vs time, impedance resonance curves, damping classification, and step-by-step formulas.
Circuit Builder Lab
Explore series, parallel, and combination circuits with adjustable resistor values. Verify Ohm's law and Kirchhoff's laws with animated current flow and real-time calculations
Electrostatics & Equipotential Mapping Lab
Place point charges, probe electric potential and field at any location, and visualize equipotential contour lines and field arrows. Verify E = -dV/dr for dipole, quadrupole, and parallel plate configurations
Electromagnetic Induction Lab
Move magnets through coils, build AC generators, and explore transformers. Visualize Faraday's law with real-time EMF graphs and Lenz's law current direction
Capstone — Faraday's law and transformers.