◇ Amperender

Amperender teaches electricity from the absolute basics (what is voltage?) up through real electronics, with a live circuit simulator at the heart of every concept. Drag a slider, watch the current change, then meet Ohm's law once the intuition is already there. Water-pipe analogies first, formal equations after. Three modes work together: Learning runs the structured curriculum (units → lessons → exercises, Duolingo-style), Workshop offers pre-built scenarios to poke at (Ohm's law, voltage divider, transistor as switch, MCU drives an LED), and Sandbox is a blank schematic where you wire up your own circuits with batteries, resistors, LEDs, switches, and ammeters. Every concept is technically honest, no misleading oversimplification.