Insulator has negative temperature coefficient. Intrinsic Semiconductor has negative temperature coefficient. Extrinsic Semiconductor has positive temperature coefficient. Metal has positive temperature coefficient. Resistance of semiconductor decreases exponentially in case of insulator it is linearly decreasing. In metal forbidden band gap Eg between conduction and valance band is zero, i.e, two bands are overlapped Band gap …

Continue reading ‘Basics of electronics (solid state electronics)’ »