Electrical and Electronic Circuits End Term: 13 April 2025, Set QEF3 (January 2025 term)

29 more questions in this paper

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1. Q4If the collector resistances in a BJT differential amplifier are not perfectly matched th…1 mark
2. Q5In the linear region, the drain current in a MOSFET is independent of VDS.1 mark
3. Q6A unity power factor implies that all the supplied power is converted into real power and…1 mark
4. Q7Consider an nMOS transistor operating in the saturation region. The drain current flowing…1 mark
5. Q8Question 81 mark
6. Q9An element and its V - I characteristics are shown in Figure(a) and Figure(b) respectivel…1 mark
7. Q10The Laplace transform of e^(-7t)u(t) is 1 / (s + 7).1 mark
8. Q11Based on the above data, answer the given subquestions.1 mark
9. Q12Based on the above data, answer the given subquestions.1 mark
10. Q13The transconductance gm (in S) is _1 mark
11. Q14The magnitude of the small signal voltage gain is _1 mark
12. Q15The value of f(0⁻) =1 mark
13. Q16Consider the function F(s) = (8s + 4) / (s² +3s +6).\ Based on the above data, answer the…1 mark
14. Q17A differential amplifier has a differential gain Ad = 30, common mode gain AC = 0.2. The …2 marks
15. Q18The zener diode in the regulator circuit shown below has a constant reverse breakdown vol…2 marks
16. Q19Determine the RMS value of the voltage (in V) across the inductor2 marks
17. Q20In a series RLC circuit, if the applied voltage is 50 V (RMS), the voltage across the res…2 marks
18. Q21Determine the value of L (in mH)2 marks
19. Q22In a series RLC circuit, if the applied voltage is 50 V (RMS), the voltage across the res…2 marks
20. Q23In a series RLC circuit, if the applied voltage is 50 V (RMS), the voltage across the res…2 marks
21. Q24Determine the apparent value of threshold voltage Vt (in V)2 marks
22. Q25Based on the above data, answer the given subquestions.2 marks
23. Q26Now, with the same device parameters calculated in Q26 and Q27, the drain current (in μA)…2 marks
24. Q27If the device is operated at VGS = 3.2 V, at what value of VDS (in V) will the device ent…2 marks
25. Q28When the device is in saturation at VGS = 3.2 V, what is the corresponding drain current …2 marks
26. Q29With reference to the two-port network shown below, Answer the subquestions.2.5 marks
27. Q30With reference to the two-port network shown below, Answer the subquestions.2.5 marks
28. Q31With reference to the two-port network shown below, Answer the subquestions.2.5 marks
29. Q32With reference to the two-port network shown below, Answer the subquestions.2.5 marks