D 02000EC205092001 Pages: 3

Reg No.: Name:
APJ ABDUL KALAM TECHNOLOGICAL UNIVERSITY
Third Semester B.Tech Degree (S,FE) Examination January 2022 (2015 Scheme)

Course Code: EC205
Course Name: ELECTRONIC CIRCUITS (EC,AE)
Max. Marks: 100 Duration: 3 Hours
PARTA
Answer any two full questions, each carries 15 marks. Marks

1 a) For the given circuit B=100 for silicon transistor. Calculate the operating points. (7)

Assume data that are not given.

+10V

+ de

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‎b) With a neat circuit diagram, design a RC integrator circuit for an input frequency )4(

‎of f | kHz.
c) Explain the concept of ac and 0൦ load line. (4)
2 a) Derive the condition for a high pass RC circuit to behave as a differentiator. (5)

‎0) What is bias stability? Derive the stability factor for leakage current of acollector (7)
to base bias transistor circuit.
c) Obtain the transfer function for a low pass filter. (3)

‎3 ஐ Draw the small signal hybrid II model of the given circuit. Assume data not given. (8)

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