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04-BS-4: May 2015

Nivaar worked solution (AI-drafted; not reviewed by a licensed engineer)

  1. Question 1 DC Bridge Network — KCL, KVL, and the Unknown Source Current
  2. Question 2 Thévenin Equivalent and Maximum Power Transfer
  3. Question 3 First-Order RL Switching Transient
  4. Question 4 AC Steady-State — Power and Resonance
  5. Question 5 AC Power Flow with a Switched Power-Factor Capacitor
  6. Question 6 Full-Wave Bridge Rectifier and DC-Side Filter
  7. Question 7 Combinational Logic Design — Vehicle Alarm and Control

Start with Question 1 →

Paper format: National Exams, May 2015 — 04-BS-4 Electric Circuits and Power. Closed book; one aid sheet (both sides) and a Casio/Sharp approved calculator permitted; 3 hours. Seven questions; any five constitute a complete paper (only the first five in the answer book are marked). All seven are solved here as a study resource. Marks: each question 20 (four 5-mark parts).

Reference texts: C. K. Alexander & M. N. O. Sadiku, Fundamentals of Electric Circuits (KCL/KVL, Thévenin, first-order transients, AC power); R. Boylestad & L. Nashelsky, Electronic Devices and Circuit Theory (bridge rectifier, RC filter); S. J. Chapman, Electric Machinery Fundamentals (magnetic circuits); M. M. Mano & M. Ciletti, Digital Design (combinational logic). Canadian frame: 60 Hz mains, SI units.