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 …

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

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 …

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

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 …

‪Circuit Construction Kit: AC‬

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

Explore how a capacitor works! Change the size of the plates and add a dielectric to see how it affects capacitance. Change the voltage and see charges built up on the plates. Shows the …

By converting our sims to HTML5, we make them seamlessly available across platforms and devices. Whether you have laptops, iPads, chromebooks, or BYOD, your favorite PhET sims …