Test Paper - Electronic Devices and Circuits - Punjab Technical University - Electronics and Communication Engineering - 3rd Semester, Study notes of Electronics engineering

Download Test Paper - Electronic Devices and Circuits - Punjab Technical University - Electronics and Communication Engineering - 3rd Semester and more Study notes Electronics engineering in PDF only on Docsity! Roll No. Total No. of Questions : 091 J-6o1SlS-so7/181 t'1-Y >o6'l IzssIl B.Tech. (Semester - 3d) ELECTRONIC DEVICES AND C^I,r{L€+|TTS (EC '20r) i';Z.zq \ i Time: o3 Hours \K,.:7 Nraximum Marks : 6o Instruction to Candidates: 1) Section - A is ComPulsorY. 2) Attempt any Four questions from Section - B' 3) Attempt any Two questions from Section - C' Section - A (10x2=20) a) What is the relation between the transition capacitance and reverse bias voltage in a P-n diode? b) A BJT with B = 49 andl.o = I.uo = lp A and I" = 10Lt A' calculate I.? c) Why CE configuration is prefbrred for cascaded amplifiers? d) What is thermal runawaY? e) what are the requirements of a good biasing circuit? 0 What are the advantages of voltage series feedback topology? q) Compare the performance or pt wity|t*t h) State the working principle of a photodiode' [Total No. of Pages : 02 QL)