Thevenin EquivalentAny linear two-terminal network as one source and one series resistance.Electrical EngineeringSeen from two terminals, any linear networkbehaves as V_Th in series with R_Th.V_Th = open-circuit voltage · R_Th = V_oc / I_scV_oc measured 12 VV_Th = 12 VLoad removed.I_sc measured 40 mAR_Th = 300 Ω12 ÷ 0.04.Load of 300 Ω6 V across itHalf of V_Th.THE COMMON MISTAKEZeroing dependent sources to find R_ThZeroing only the independent sourcesA dependent source is part of how the network behaves. Kill it and you havefound the resistance of some other circuit.Zeroing means shorting a voltage source and opening a current source— not deleting the component from the drawing.Thevenin Equivalentlearnposters.com
Thevenin Equivalent — printable engineering wall chart from LearnPosters. Free vector PDF, US Letter and A4.

What’s on the Thevenin Equivalent poster

The rule, 3 worked examples, and the mistake everyone makes.

Zeroing means shorting a voltage source and opening a current source — not deleting the component from the drawing.

Questions about the Thevenin Equivalent poster

What’s on the Thevenin Equivalent poster?
The rule, 3 worked examples, and the mistake everyone makes. Seen from two terminals, any linear network behaves as V_Th in series with R_Th.; V_Th = open-circuit voltage · R_Th = V_oc / I_sc; V_oc measured 12 V = V_Th = 12 V; I_sc measured 40 mA = R_Th = 300 Ω; Load of 300 Ω = 6 V across it; Common mistake: Zeroing dependent sources to find R_Th → Zeroing only the independent…. Zeroing means shorting a voltage source and opening a current source — not deleting the component from the drawing.
Who is the Thevenin Equivalent poster for?
Thevenin Equivalent 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 Thevenin Equivalent poster?
Use it when only the load changes and everything behind the terminals stays fixed. A wall chart earns its place by being glanceable from where the work is happening, so Thevenin Equivalent belongs on the wall where that engineering work actually happens, within glancing distance, rather than filed away.
What other posters go with Thevenin Equivalent?
AC Power Triangle, Divider Rules and Capacitor & Inductor Laws sit alongside Thevenin Equivalent 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 RulesCapacitor & Inductor Laws
Is the Thevenin Equivalent poster free to download and print?
Yes. Thevenin Equivalent 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 Thevenin Equivalent poster print at?
Thevenin Equivalent 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 Thevenin Equivalent loses nothing.Printing guide

Related posters

Charts that sit alongside Thevenin Equivalent on the same wall.

Browse every Electrical Engineering poster, or start from the full catalogue.