Electricity and Circuits
Explore electricity with a safe virtual circuit builder. Connect batteries, wires, bulbs and switches, compare series and parallel circuits, test conductors and insulators, and measure voltage and current to learn Ohm's law.
Electricity and Circuits experiments
Conductor or Insulator?
Drop objects into a circuit gap and see what conducts.
Try it nowOhm's Law Lab
Change voltage and resistance, read the meters, plot a graph.
Try it nowPower Bill
Run appliances for hours and see the energy and the cost.
Try it nowFuse Blower
Overload a circuit safely and see why fuses exist.
Try it nowFruit Battery
Wire lemons and potatoes together to light an LED.
Try it nowStatic Shock
Rub a balloon and make hair stand on end.
Try it now
Key equations
V = I × RP = V × IR = R₁ + R₂ (series)