Nivaar worked solution (AI-drafted; not reviewed by a licensed engineer)
Paper format. National Examinations, December 2013 — 07-Elec-A7 Electromagnetics. Three hours, closed book, one approved calculator. Eight questions of equal value (20 marks each); the paper states that any five constitute a complete paper, but all eight are solved here so the set works as a complete study resource. Aids printed on the paper: $\epsilon_0 = 8.85\times10^{-12}$ F/m and $\mu_0 = 4\pi\times10^{-7}$ H/m.
Reference texts. Sadiku, Elements of Electromagnetics, 7th ed.; Hayt & Buck, Engineering Electromagnetics, 9th ed.; Ulaby & Ravaioli, Fundamentals of Applied Electromagnetics, 8th ed.; Pozar, Microwave Engineering, 4th ed.; Balanis, Antenna Theory: Analysis and Design, 4th ed.
Free-space quantities follow from the printed aids: $c = 1/\sqrt{\mu_0\epsilon_0} \approx 3\times10^{8}$ m/s and $\eta_0 = \sqrt{\mu_0/\epsilon_0} = 376.8\ \Omega$.
