Nivaar worked solution (AI-drafted; not reviewed by a licensed engineer)
National Exams, December 2016 — 04-BS-4 Electric Circuits and Power. Three hours duration, closed book (one aid sheet permitted). Seven questions are printed; any five constitute a complete paper, but all seven are solved below as a complete study resource.
Reference texts: Sadiku, Fundamentals of Electric Circuits, 7th ed. (circuit analysis, transients, AC power, rectifiers – Questions 1–6); Chapman, Electric Machinery Fundamentals, 5th ed. (magnetic circuits – Question 7).