What’s on the Capacitor & Inductor Laws poster
A 6-row table: Property · Capacitor · Inductor.
Everything on the right is the mirror image of the left.
- Defining law — i = C dv/dt — v = L di/dt
- Cannot change instantly — Voltage — Current
- Stored energy — ½CV² — ½LI²
- Impedance — 1/(jωC) — jωL
- DC steady state — Open circuit — Short circuit
- In series — 1/C = 1/C₁ + 1/C₂ — L = L₁ + L₂
The duality is exact: swap v for i and C for L and any capacitor result becomes the matching inductor result.
Questions about the Capacitor & Inductor Laws poster
- What’s on the Capacitor & Inductor Laws poster?
- A 6-row table: Property · Capacitor · Inductor. Everything on the right is the mirror image of the left. Defining law — i = C dv/dt — v = L di/dt; Cannot change instantly — Voltage — Current; Stored energy — ½CV² — ½LI²; Impedance — 1/(jωC) — jωL; DC steady state — Open circuit — Short circuit; In series — 1/C = 1/C₁ + 1/C₂ — L = L₁ + L₂. The duality is exact: swap v for i and C for L and any capacitor result becomes the matching inductor result.
- Who is the Capacitor & Inductor Laws poster for?
- Capacitor & Inductor Laws belongs to the Electrical Engineering section rather than to a school year, because engineering is not something one grade owns. Anyone learning circuit analysis can pin it up — a beginner, a student mid-course, or someone revising years later.
- When should you use the Capacitor & Inductor Laws poster?
- Learn one column and the other comes free by swapping voltage for current. A wall chart earns its place by being glanceable from where the work is happening, so Capacitor & Inductor Laws belongs on the wall where that engineering work actually happens, within glancing distance, rather than filed away.
- What other posters go with Capacitor & Inductor Laws?
- AC Power Triangle, Divider Rules and Ohm's Law & Power sit alongside Capacitor & Inductor Laws in the Electrical Engineering section. Printed together they make a wall rather than a single sheet, which is how a reference set actually gets used.AC Power TriangleDivider RulesOhm's Law & Power
- Is the Capacitor & Inductor Laws poster free to download and print?
- Yes. Capacitor & Inductor Laws downloads as a free PDF with no account, no email and no watermark, like everything else in the Electrical Engineering section. Print as many copies as you like for a home, a classroom, a library or a tutoring group; reselling the file is the only thing the licence rules out.Read the licence
- What size does the Capacitor & Inductor Laws poster print at?
- Capacitor & Inductor Laws is a vector PDF laid out for US Letter, and prints on A4 with Fit to page — the same file, no separate download. Because every mark on it is drawn rather than photographed, it stays sharp enlarged to A3, A2 or A1 at a copy shop. Colour carries emphasis only, so a greyscale print of Capacitor & Inductor Laws loses nothing.Printing guide
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