Physics & Circuits Mind Map
Algorithm & Systems VisualizationsEvery physics & circuits visualization on this site on one map. The branches are the main ideas. Each leaf is a page; the grey line under it is the one thing to remember about it. Click a branch to focus on it, click a page to open it.
1. How the map is organized
Ask what moves, and where:
- Charge flows in wires through simple parts (R, L, C)? Circuit laws.
- A part conducts one way, switches or amplifies? Electronic parts: diode, transistor, op-amp.
- Fields change in space with no wire? Fields and waves; when the wave is visible light meeting glass, slits or filters, it is light and optics.
- Many particles bouncing, or something near light speed or atom-sized? Heat and gases for the crowd; relativity and quantum for the very fast or very small.
2. The branches side by side
| Branch | Main law | You can see |
|---|---|---|
| Circuit laws | V = IR, KCL, KVL | currents, node voltages, ringing |
| Electronic parts | diode knee, threshold, golden rules | AC to DC, logic gates, gain |
| Fields and waves | Faraday, Maxwell | induced EMF, radio waves |
| Light and optics | Snell, Malus, path difference | bending, dimming, fringes |
| Heat and gases | PV = NkT, Maxwell–Boltzmann | pressure, speed histogram, mixing |
| Relativity and quantum | Lorentz factor γ, Schrödinger | slow clocks, standing waves, tunneling |
3. Five facts to remember
- Currents into a node sum to zero (KCL); voltages around a loop sum to zero (KVL).
- An RC circuit reaches about 63% of its final value after one time constant τ = RC.
- Only a changing magnetic flux induces an EMF, and the induced current opposes that change.
- Light is an electromagnetic wave: c = 1/√(μ₀ε₀) ≈ 3·10⁸ m/s and c = λf.
- Light slows to v = c/n in glass; the frequency stays the same and the wavelength shrinks.
See all physics & circuits pages in the index, or the other mind maps.