PTU B.Tech ECE 3rd Sem Paper 2012 Electronic Circuit & Devices

PTU B.Tech ECE 3rd Semester Paper 2012 Electronic Circuit & Devices Punjab Technical University Exam 2012 3rd Sem Electronic Circuit & Devices Test September and March Question Paper Free Download Punjab Technical University Electronic Circuit & Devices Question Papers 2012 PTU B.Tech ECE 3rd Semester Question Paper 2012 for all students Previous Year old Past Papers of PTU B.Tech ECE 3rd Sem Paper 2012 Electronic Circuit & Devices Punjab Technical University September 2012 and March 2012 Exam B.Tech ECE 3rd Semester Sample Model Question Papers Free Download PDF

 Electronic Circuit & Devices

 a) Discuss the behavior of p-n junction diode under forward and reverse biased conditions.
h) Draw circuit diagram for CC & CE configuration of transistor. Which is having higher gain and why.
c) State advantages of JFET over BJT.
d) What is Operating point’? Why is it necessary to stabilize operating point of a transistor amplifier.
C) What do you understand by class A, B and C power amplifiers.
1) 1)raw the block diagram of a multistage amplifier having n-stages. Write expression for its gain (A).
g) State advantages of -vc feedback in amplifiers.
h) What is an oscillator. What are the essential components of feed back LC oscillator.
i) Differentiate between photo diodes & photo-transistor.
j) I)cfinc term junction capacitance. Name different type of capacitances a diode posses.

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