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For Students · Binary Adder

Binary Adder for a capacitor bank

Built for students learning it for a class or exam. See the concept move instead of memorizing formulas — and check your homework intuition. Simulate a capacitor bank live below — adjust the inputs and watch it respond, right in your browser.

Binary Ripple-Carry AdderLive

how computers add

01010011

+ 00111010

01110010

= 10001101

amber = carry chain

Controls

Presets

A ripple-carry adder chains full-adders: each bit adds A, B, and the carry from the bit below, passing its own carry upward. That carry ripple is why simple adders slow down as they get wider. Educational tool.

▶ Run in Python

Data Inspector

A + B (decimal)83 + 58 = 141

8-bit result10001101

Carry out0

Governing equation

S C_{o u t} = A \oplus B \oplus C_{in} = A B + C_{in} (A \oplus B) = 0

Reading this result: A carry is generated in 4 of the 8 columns, and each one must wait for the column below it — that wait is why wide ripple adders slow down.

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Frequently asked questions

Is this good for students?: Yes — this version of "Binary Adder for a capacitor bank" is framed for students learning it for a class or exam. See the concept move instead of memorizing formulas — and check your homework intuition.
Do I need to install anything?: No. It runs in any modern browser, free, with no account required.