EEE U111 · Narrated walkthrough · Module 3 basics §3.2–3.3
The three snapshots: how every switching question starts
A short narrated lesson on a tiny circuit with easy numbers: just before the switch, just after it, long after it, then the time constant and the one formula. This is the first step before the past-paper transient questions. Press play, keep the sound on, and answer the two questions it stops to ask.
About two and a half minutes, watch once (⏮ ⏭ replay a scene). It stops twice to ask for your next move. Commit to an answer before it continues. Captions are on by default; the full transcript is below the player.
Redo it on paper without looking: v(0⁻), v(0⁺), v(∞), τ, the formula. Then the next step up: RC with a two-position switch (Oct 2024 Q3b). The written version is in the Module 3 lesson.