Purpose: Illustrate how the resistivity of a wire changes with length and gauge. Parts: Wire set up Demo multi meter Power supply unit Cables Setup: The wire setup contains two wires with same length but different wire gauges.  Connect the power supply through different lengths of each… Continue reading »

Current and Resistance

Purpose:Visualize electric current. Parts: Wooden tray with nails in it Metal hanger to hold the tray Steel balls Setup: Attach one end of the tray to the hanger and place it as shown in picture 3, so that the tray will have some incline with table. Now release… Continue reading »

RC circuits

  Purpose: Demonstrate the phase difference between the current and the voltage across the capacitor in  a series RC circuit. Parts: Demo oscilloscope Signal Generator Breadboard/few capacitors/Resistor BNC cables Setup:   Schematic(above) and the circuit on the breadboard(below). Continue reading »