24-09-2014, 12:30 PM
Question Paper Code : 53366
B.,E./B.Tech. DEGREE EXAMINATION, MAY/JUNE 2014.
Third Semester
Electrical and Engineering
EC 1211 ELECTRONIC DEVICES
(Common to Second/Third Semester Electronics and Instrumentation Engineering and Instrumentation and Control Engineering)
(Regulation 2004/2007)
(Common to B.E (Part-Time) Second Semester, Electrical and Electronics Engineering, Regulation 2005)
Time : Three hours Maximum : 100 marks
Answer ALL questions.
PART A — (10 x 2 20 marks)
1.What is reverse recovery time of diode?
2.What is the effect of temperature increase in reverse satiation current?
3.Draw the h-parameter model of CE amplifier configuration.
4.What is early effect?
5.Define pinch-off voltage.
6.If the VGS of a n-channel JFET is increased negatively, what happens to the drain current ID 2
7.What are the advantages of LCD?
8.What is an opto coupler?
9.What is holding current of SCR?
10.Draw the symbol of TRIAC and thermistor.
Full Name :Arumugam.P
College Name :SNS College Of Technology
Department :EEE
Semester :03
Subject Code :EC1211
Subject Name :Electronic Devices
Study Material Description :QP
Attachment :
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