Wednesday, May 6, 2020

Electronic Final Exam Paper - 1096 Words

INTERNATIONAL ISLAMIC UNIVERSITY MALAYSIA END OF SEMESTER EXAMINATION SEMESTER I, 2005/2006 SESSION KULLIYYAH OF ENGINEERING Programme Time Duration : ENGINEERING : 2:30 pm - 5:30 pm : 3 Hrs Section(s) : 3 Level of Study Date : UG 1 : 24/10/2005 Course Code : ECE 1312 Course Title : Electronics This Question Paper Consists of Eight (8) Printed Pages (Including Cover Page) With Six (6) Questions. INSTRUCTION(S) TO CANDIDATES DO NOT OPEN UNTIL YOU ARE ASKED TO DO SO †¢ †¢ †¢ Total marks of this examination is 100. This examination is worth 40% of the total assessment. This examination consists of two parts. You are required to answer all questions from part A and choose any 3 (three) questions from part B. Any form of†¦show more content†¦4.: i. each stage ii. overall cascade connection. (8 marks) 500ÃŽ © Ri1= 1MÃŽ © Ri2= 1500ÃŽ © 100ÃŽ © RL= 100ÃŽ © Fig. 4. Q.4 [20 marks] (a) Refer to Fig. 5., sketch the output waveform of the circuit. (2 marks) Fig. 5. (b) Draw the circuit diagrams of a two-input diode AND gate and a two-input diode OR gate. (6 marks) 5 Electronics ECE 1312 (c) Refer to Fig. 6.: Fig. 6. i. Determine the range of RL (RLmax , RLmin) and IL (ILmax , ILmin) that will result in the voltage across RL to be maintained at 10 V. Plot VL versus RL and VL versus IL. (10 marks) Determine the maximum power rating of the diode. ii. (2 marks) Q.5 [20 marks] (a) Refer to the common-emitter characteristics of a BJT of Fig. 7.: i. ii. iii. Find the value of ÃŽ ²dc at an operating point of VCE = +15 V and IC = 2.5 mA. (2 marks) Find the value of ÃŽ ± corresponding to the ÃŽ ²dc value. (2 marks) The following values are given as design data for the npn BJT fixed bias circuit: VCC = 12 V, RC = 2.2 kÃŽ ©. Draw the fixed-bias circuit and find RB value using ÃŽ ²dc value obtained from part (i). (6 marks) 6 Electronics ECE 1312 Fig. 7. Refer to the common-emitter amplifier configuration of Fig. 8: i. ii. Draw the small–signal midband ac equivalent circuit. (b) (2 marks) Given VCC = 15 V, ÃŽ ² = 100, VT = 0.026 V, draw the dc equivalent circuit and find ICQ. FindShow MoreRelatedreaction essay about cinderella man1210 Words   |  5 Pagesall of your papers, notes, and other information in one location. 2. Turn in all homework and projects during class on the day they are due. No late work will be accepted, unless an excused absence occurs on the day the assignment is due. 3. Check your Ball State email at least once per day. 4. Come to class on time every day. Be prepared for class. That means having your textbook, your homework, paper, a writing utensil, etc. ready to use. 5. Turn off cell phones and other electronic devices beforeRead MoreDigital Exams On The Rise Essay1390 Words   |  6 Pagesstudent’s life today, both in and outside of school. But can they take their notebook computers into exams? 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