Uploaded April 2019 | Updated September 2026, 2 weeks ago
Potassium iodide is added to starch solution which is conducting electricity slightly. As the KI dssolves the LED brightens up and the blue starch/iodide complex forms at the positive electrode. By having a Nd magnet underneath, the ions rotate.
Potassium iodide is added to starch solution which is conducting electricity slightly. As the KI dssolves the LED brightens up and the blue starch/iodide complex forms at the positive electrode. By having a Nd magnet underneath, the ions rotate.
