Instructions:
- The marks are indicated in the right-hand margin.
- There are NINE questions in this paper.
- Attempt FIVE questions in all.
- Question No. 1 is compulsory.
Q.1 Choose the correct option/answer the following (Any seven question
only):
JFET can be operated with
Which power amplifier has the highest collector efficiency
Which amplifier is used for 180-degree phase shift
A MOSFET has three terminals, namely
The maximum efficiency of resistance loaded class B power amplifier is
A JFET is also called _______ transistor
In a phase shift oscillator, the frequency determining elements are
The leakage current across a pn junction is due to
An oscillator converts
In a transistor
Q.2 Solve both questions :
In a full wave rectifier, the input is from 30-0-30V transformer. The load and diode forward resistances are 100$ \Omega $ and 10$ \Omega $ respectively. Calculate the average voltage, dc output power, ac input power, rectification efficiency and percentage regulation.
Explain the working of positive clamping circuit.
Q.3 Solve both questions :
Draw the common emitter circuit and sketch the input and output characteristics. Also explain active region, cutoff region and saturation region by indicating them on the characteristic curve.
With a neat circuit diagram explain the Voltage Divider Bias circuit by giving its exact analysis.
Q.4 Solve both questions :
Explain the characteristics of an Ideal Op-Amp. Mention some of the applications of Op-Amp.
Explain R-2R ladder DAC with example?
Q.5 Solve both questions :
Explain Successive type ADC with neat circuit diagram.
Describe the construction and operation of JFET and draw its characteristics.
Q.6 Solve both questions :
Explain Colpitts oscillator with Circuit diagram and derive its frequency.
Explain RC coupled transistor amplifier with neat circuit diagram in a middle frequency Range.
Q.7 Solve both questions :
Explain RC- phase shift oscillator using op-amp and derive its frequency.
Describe the construction and operation of depletion type MOSFET and draw its characteristics.
Q.8 Solve both questions :
Describe class A Power Amplifier. Derive the expression for its maximum conversion Efficiency.
Explain Wien bridge oscillator using op-amp and derive its frequency.
Q.9 Solve both questions :
Explain MOSFET as an amplifier?
Describe class B Power Amplifier. Derive the expression for its maximum conversion Efficiency.
Instructions:
- The marks are indicated in the right-hand margin.
- There are NINE questions in this paper.
- Attempt FIVE questions in all.
- Question No. 1 is compulsory.
Q.1 Choose the correct option/answer the following (Any seven question
only):
JFET can be operated with
Which power amplifier has the highest collector efficiency
Which amplifier is used for 180-degree phase shift
A MOSFET has three terminals, namely
The maximum efficiency of resistance loaded class B power amplifier is
A JFET is also called _______ transistor
In a phase shift oscillator, the frequency determining elements are
The leakage current across a pn junction is due to
An oscillator converts
In a transistor
Q.2 Solve both questions :
In a full wave rectifier, the input is from 30-0-30V transformer. The load and diode forward resistances are 100$ \Omega $ and 10$ \Omega $ respectively. Calculate the average voltage, dc output power, ac input power, rectification efficiency and percentage regulation.
Explain the working of positive clamping circuit.
Q.3 Solve both questions :
Draw the common emitter circuit and sketch the input and output characteristics. Also explain active region, cutoff region and saturation region by indicating them on the characteristic curve.
With a neat circuit diagram explain the Voltage Divider Bias circuit by giving its exact analysis.
Q.4 Solve both questions :
Explain the characteristics of an Ideal Op-Amp. Mention some of the applications of Op-Amp.
Explain R-2R ladder DAC with example?
Q.5 Solve both questions :
Explain Successive type ADC with neat circuit diagram.
Describe the construction and operation of JFET and draw its characteristics.
Q.6 Solve both questions :
Explain Colpitts oscillator with Circuit diagram and derive its frequency.
Explain RC coupled transistor amplifier with neat circuit diagram in a middle frequency Range.
Q.7 Solve both questions :
Explain RC- phase shift oscillator using op-amp and derive its frequency.
Describe the construction and operation of depletion type MOSFET and draw its characteristics.
Q.8 Solve both questions :
Describe class A Power Amplifier. Derive the expression for its maximum conversion Efficiency.
Explain Wien bridge oscillator using op-amp and derive its frequency.
Q.9 Solve both questions :
Explain MOSFET as an amplifier?
Describe class B Power Amplifier. Derive the expression for its maximum conversion Efficiency.