Electronics made approachable

Plug into Electronics Learn with tools, guides, and ideas that keep you moving

Clear explanations, practical calculators, and a bit of humor for students, makers, and engineers who want to build confidence one concept at a time.

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Practical learning

Short, useful content focused on real electronics questions instead of filler.

Tools that save time

Interactive calculators help you check values quickly while you study or design.

A lighter tone

Comics and visual explanations make technical topics easier to remember.

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Featured post

A good place to start if you want something thoughtful, useful, and immediately relevant to electronics practice.

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Circuit with voltage and current sources

Testing circuit intuition

The post focuses on building intuition for circuits, stressing understanding current flow, voltage drops, and topology rather than calculations. It explains that ground placement and unused resistors don’t affect behavior and clarifies how voltage and current sources interact. Certain source configurations are impossible, like multiple current sources i...

#Circuit theory

Written by Alternadmin
Published 8 months ago

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Featured calculators

A small selection of tools that help with the numbers you reach for most often when learning or building.

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Ohm's Law circuit diagram showing voltage, current, and resistance relationship.

Ohm's Law Calculator | Voltage, Current, Resistance & Power

This Ohm's Law Calculator shows the relationship between voltage (V), current (I), and resistance (R), and also calculates the electrical power dissipated in the resistor.

Low-Pass Filter Calculator | RC, LC & LR Bode Plot

This calculator plots the frequency response of low-pass filters from the entered component values. Several topologies are available, including optional component parasitics, and you can compare multiple traces.

Diagram showing resistors connected in parallel

Equivalent Resistance Calculator: Series, Parallel & Mixed

With the equivalent resistor calculator you can calculate the equivalent resistance of the most common resistor networks.

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Latest comic

Technical learning works better when it also funny. Here is the latest comic from the site.

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Fresh from the comic section

Yellow is a number

For the lolz. Also, I need to learn how to draw. It's a work in progress.

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