In this experiment the mercury is placed inside a wooden disc and at the sides two aluminum wheels and at the center a magnet. When the current flows through the aluminum conductor it generates a magnetic field. This condition puts in rotation the liquid mercury being a conductive metal. The working voltage is DC 2V controlled by inverter. 1speaker magnet, talc powder. The talc powder makes visible the movement of the mercury. The speed of rotation of mercury depends on the voltage being given.