This is an interactive sim. It changes as you play with it.

Build circuits with batteries, resistors, ideal and non-Ohmic light bulbs, fuses, and switches. Determine if everyday objects are conductors or insulators, and take measurements with an ammeter and voltmeter.

Explore and experiment with interactive circuit simulations to learn about batteries, resistors, light bulbs, switches, and electrical concepts like Ohm's law.

‪Circuit Construction Kit: AC‬

Build and explore electrical circuits with this interactive simulation, learning about voltage, current, resistance, and more in an engaging way.

Build circuits with AC voltage sources, batteries, resistors, capacitors, inductors, fuses, and switches. Take measurements with a lifelike ammeter and voltmeter and graph the current and voltage as a …

Founded in 2002 by Nobel Laureate Carl Wieman, the PhET Interactive Simulations project at the University of Colorado Boulder creates free interactive math and science simulations. PhET sims are …

Choose learning goals that include specific, measurable, outcomes – e.g., students will be able to identify the variables that affect the strength of gravity, students will be able to describe how …

Look inside a resistor to see how it works. Increase the battery voltage to make more electrons flow though the resistor. Increase the resistance to block the flow of electrons. Watch the current and …

Build and explore AC circuits with interactive simulations featuring components like resistors, capacitors, and switches to understand electrical concepts.