How to check light emitting diode with multimeter
An LED (light emitting diode) is a semiconductor diode,specifically a p-n junction, that emits light when a positive current flows from the anode (labelled ‘+’, i.e., positive) to the cathode (labelled ‘-’, i.e., negative). The symbol of the diode is usually represented by an arrow that meets the vertical line at the front end,and the […]