Physics · Beginner · 6 steps

Electrical Circuits Fundamentals

Taught by Tesla · Electricity and wild ideas

Learn how electric circuits work by building them. Flip a switch to close the loop, change two resistors and watch Ohm's law respond, compare series and parallel wiring, and charge a capacitor to see the RC time constant. Tesla narrates five hands-on circuits and a five-question challenge.

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Free, no account needed. Opens right here; the same lesson runs in the app with narration in Tesla's voice.

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What you will learn

  • Why current needs a closed loop
  • Ohm's law: voltage, current and resistance (V = IR)
  • How resistors combine in series and in parallel
  • What the RC time constant τ = RC means

Lesson outline

  1. A Complete Circuit
  2. Ohm's Law
  3. Parallel Branches
  4. Series-Parallel Combo
  5. Bonus: The RC Time Constant
  6. Circuit Challenge

Each step has a short narration, something to drag or toggle, and the lesson ends with a quiz. You can go back to any step.

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