This Android Application covers all the topics from basic to advance level of Electronic Engineering . It is the first app on Play store which contain thousands of mcq's on electronic engineering . It contain frequently ask questions in job test and interviews in all government and private organizations. . Following Topics are included.... 1.Semiconductors 2.Semiconductor Diodes 3.Special-Purpose Diodes 4.Diode Applications 5.Bipolar Junction Transistors 6.Transistor Bias Circuits 7.BJT Dev