EE2203 - electronic Devices and circuit
(Regulation 2008)
Time: Three hours Maximum: 100 Marks
Answer ALL Questions
PART A - (10 × 2 = 20 Marks)
1. What is meant by the diffusion current in the semi conductor?
2. A Silicon Diodorus has a saturation current of 300 ° K. 7.5ì A at Room Temperature
The calculated saturation current at 400 ° K.
3. Draw the input and output characteristics of the transistors in the CE configuration
Mark and the cutoff, saturation and active regions.
4. State the advantages of optocoupler. (Write any Four).
5. Compare JFET with BJT.
6. Define the amplification factor of the JFET.
7. Define and write so CMRR significance in differential amplifiers.
8. List the advantages of negative feedback amplifiers.
9. Idealized sketches the characteristics for the filter type.
(A) low miles
(B) High-pass
(C) Band pass
(D) Band Filters rejected.
10. Define and draw so intrinsically stand off ratio of UJT equivalent circles.
PART B - (5 × 16 = 80 Marks)
11. (A) With a neat diagram explain the working of a PN Junction in Diodorus
forward and reverse Bias Bias Show and the effect of Temperature on experience
5-1 characteristics. (16)
B) (i) Explain characteristics of Zener 6 Diodorus. (8)
(Ii) draw around the diagram and explain the working of the full wave
rectifier bridge and TURN OFF the expression for the average output
current and rectification efficiency. (8)
12. (A) (i) draw the h-parameter equivalent of the transistors around the CE
configuration. (8)
(Ii) Describe the Methods of the parameters determined from those of the H-
station input and output characteristics. (8)
(B) (i) Explain the import characteristics of the optocoupler. (6)
(Ii) Explain the switching characteristics of transistors with neat sketches.
(10)
13. (A) (i) Explain how the transconductance of a JFET with various drain
Gate voltage and current characteristics and remove
characteristics. (12)
(Ii) has the following parameters A JFET IDDS = 32 mA,
VGS (off) = -8 features, VGS = -4.5 features. Find the values of the drain
current. (4)
(B) (i) Explain the working of the enhancement type n-Channel MOSFET.
Sketches so typical characteristics. (10)
(Ii) Explain the application of the FET as a voltage variable resistance. (6)
14. (A) (i) draw the Block diagram of a voltage series feedback amplifier and
TURN OFF the equation for input impedance, output impedance and the
voltage Gaines. (10)
(Ii) The calculated Gaines voltage, input and output resistances of the voltage
feedback amplifier having a series of AV = 300, Ri = 1.5 k, 50 k = Ro
and â = 1/15. (6)(B) (i) the differential oscillator with amplifier. (4)
(Ii) draw the circles of a Hartley oscillator TURN OFF and the condition for
The frequency of oscillation. (12)
15. (A) (i) Describe the operation of UJT characteristics and penalty shoot out. (8)
(Ii) Describe the working of a Schmitt trigger around with the help of
necessary waveforms. (8)
(B) (i) sketches the Response of RC High-pass filter for the following account;
and explain.
(1) Ramp
(2) pulse. (8)
(Ii) Explain the operation of a bistable multi-vibrations around with neat
sketches. (8)
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(Regulation 2008)
Time: Three hours Maximum: 100 Marks
Answer ALL Questions
PART A - (10 × 2 = 20 Marks)
1. What is meant by the diffusion current in the semi conductor?
2. A Silicon Diodorus has a saturation current of 300 ° K. 7.5ì A at Room Temperature
The calculated saturation current at 400 ° K.
3. Draw the input and output characteristics of the transistors in the CE configuration
Mark and the cutoff, saturation and active regions.
4. State the advantages of optocoupler. (Write any Four).
5. Compare JFET with BJT.
6. Define the amplification factor of the JFET.
7. Define and write so CMRR significance in differential amplifiers.
8. List the advantages of negative feedback amplifiers.
9. Idealized sketches the characteristics for the filter type.
(A) low miles
(B) High-pass
(C) Band pass
(D) Band Filters rejected.
10. Define and draw so intrinsically stand off ratio of UJT equivalent circles.
PART B - (5 × 16 = 80 Marks)
11. (A) With a neat diagram explain the working of a PN Junction in Diodorus
forward and reverse Bias Bias Show and the effect of Temperature on experience
5-1 characteristics. (16)
B) (i) Explain characteristics of Zener 6 Diodorus. (8)
(Ii) draw around the diagram and explain the working of the full wave
rectifier bridge and TURN OFF the expression for the average output
current and rectification efficiency. (8)
12. (A) (i) draw the h-parameter equivalent of the transistors around the CE
configuration. (8)
(Ii) Describe the Methods of the parameters determined from those of the H-
station input and output characteristics. (8)
(B) (i) Explain the import characteristics of the optocoupler. (6)
(Ii) Explain the switching characteristics of transistors with neat sketches.
(10)
13. (A) (i) Explain how the transconductance of a JFET with various drain
Gate voltage and current characteristics and remove
characteristics. (12)
(Ii) has the following parameters A JFET IDDS = 32 mA,
VGS (off) = -8 features, VGS = -4.5 features. Find the values of the drain
current. (4)
(B) (i) Explain the working of the enhancement type n-Channel MOSFET.
Sketches so typical characteristics. (10)
(Ii) Explain the application of the FET as a voltage variable resistance. (6)
14. (A) (i) draw the Block diagram of a voltage series feedback amplifier and
TURN OFF the equation for input impedance, output impedance and the
voltage Gaines. (10)
(Ii) The calculated Gaines voltage, input and output resistances of the voltage
feedback amplifier having a series of AV = 300, Ri = 1.5 k, 50 k = Ro
and â = 1/15. (6)(B) (i) the differential oscillator with amplifier. (4)
(Ii) draw the circles of a Hartley oscillator TURN OFF and the condition for
The frequency of oscillation. (12)
15. (A) (i) Describe the operation of UJT characteristics and penalty shoot out. (8)
(Ii) Describe the working of a Schmitt trigger around with the help of
necessary waveforms. (8)
(B) (i) sketches the Response of RC High-pass filter for the following account;
and explain.
(1) Ramp
(2) pulse. (8)
(Ii) Explain the operation of a bistable multi-vibrations around with neat
sketches. (8)
For more information contact us via Studentstrainer@gmail.com. Caring is sharing, show your caring to us by sharing our post in social sites and keep like us,,,
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