What’s on the Circuit Basics poster
A 4-row table: Quantity · Series · Parallel.
Series against parallel behaviour.
- Current — Same throughout — Splits between branches
- Voltage — Divides across components — Same across each branch
- Resistance — R = R₁ + R₂ — 1/R = 1/R₁ + 1/R₂
- Adding a component — Total R increases — Total R decreases
Adding resistors in parallel always reduces total resistance below the smallest individual value.
Questions about the Circuit Basics poster
- What’s on the Circuit Basics poster?
- A 4-row table: Quantity · Series · Parallel. Series against parallel behaviour. Current — Same throughout — Splits between branches; Voltage — Divides across components — Same across each branch; Resistance — R = R₁ + R₂ — 1/R = 1/R₁ + 1/R₂; Adding a component — Total R increases — Total R decreases. Adding resistors in parallel always reduces total resistance below the smallest individual value.
- Who is the Circuit Basics poster for?
- Circuit Basics belongs to the Physics section rather than to a school year, because physical science is not something one grade owns. Anyone learning electromagnetism can pin it up — a beginner, a student mid-course, or someone revising years later.
- When should you use the Circuit Basics poster?
- Current is the same everywhere in series. Voltage is the same across parallel branches. A wall chart earns its place by being glanceable from where the work is happening, so Circuit Basics belongs on the wall where that physical science work actually happens, within glancing distance, rather than filed away.
- What other posters go with Circuit Basics?
- AC Circuits, Capacitance and Electric Fields sit alongside Circuit Basics in the Physics section. Printed together they make a wall rather than a single sheet, which is how a reference set actually gets used.AC CircuitsCapacitanceElectric Fields
- Is the Circuit Basics poster free to download and print?
- Yes. Circuit Basics downloads as a free PDF with no account, no email and no watermark, like everything else in the Physics 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 Circuit Basics poster print at?
- Circuit Basics 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 Circuit Basics loses nothing.Printing guide
Related posters
Charts that sit alongside Circuit Basics on the same wall.
Browse every Physics poster, or start from the full catalogue.