EE_Phys_012_Major_Exam 1

# EE_Phys_012_Major_Exam 1 - produces a peak output of 18V....

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KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS University Diploma Programs PHYS 012: Solid State Physics Major Examination # 1 Sunday, November 3, 2002 Student Name: ID #: Question No. Points Score 1. 10 2. 20 3. 10 4. 20 5. 10 6. 10 7. 10 8. 10 Total 100

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Q.1 Determine the forward voltage and forward current for the diode in the figure below for each of the diode models. Also, find the voltage across the limiting resistor in each case. Assume r' d = 10 Ω at the determined value of forward current. (Page 2 of 9)
Q.2 Determine the ripple factor for the filter bridge with a load as indicated in the following figure. (Page 3 of 9)

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Q.3 Find the average value of the voltage in the following figure. (Page 4 of 9) 8
Q.4 What value of filter capacitor is required to produce a 2% ripple factor for a full-wave rectifier having a load resistance of 1.5 KΩ? Assume the rectifier

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Unformatted text preview: produces a peak output of 18V. (Page 5 of 9) Q.5 Sketch the output voltage waveform for each circuit in the following figures. (Page 6 of 9) Q.6 A certain voltage doubler has 30V rms on its input. What is the output voltage? Sketch the circuit and indicate both the output terminals and the PIV rating for the diodes. (Page 7 of 9) Q.7 Describe the output waveform of each circuit in the following figure. Assume the RC time constant is much greater than the period of the input. (a) (b) (Page 8 of 9) Q.8 Design a circuit to limit a 20V rms sinusoidal voltage positive amplitude of 10V and a maximum negative amplitude of 8V using a single 24V dc voltage source. (Page 9 of 9)...
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## This note was uploaded on 10/28/2009 for the course ELECTRICAL Phys 012 taught by Professor Dr.abdul during the Fall '07 term at King Fahd University of Petroleum & Minerals.

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EE_Phys_012_Major_Exam 1 - produces a peak output of 18V....

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