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22-Elec-A7 Electromagnetics: May 2014

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

  1. Question 1 Pulse Echoes from Two Shunt Taps on an Infinite Line
  2. Question 2 A Load Shunted by a Matched Pair of Open and Shorted Stubs
  3. Question 3 Sizing a 50 Ω Coaxial Line
  4. Question 4 Power Coupled into Seawater at 1 GHz
  5. Question 5 Guide Wavelength, and What Happens When the Dielectric Is Removed
  6. Question 6 Reading a Plane Wave from a Loop Probe
  7. Question 7 Scaling a Short Monopole's Field to a New Frequency and a New Direction
  8. Question 8 A Vertical Electrostatic Dipole above a Conducting Plane

Start with Question 1 →

Paper format. National Examinations, May 2014 — 07-Elec-A7 Electromagnetics. Three hours, closed book, one approved Casio or Sharp calculator. Eight questions of equal value (20 marks each); the paper states that any five constitute a complete paper and that only the first five in the answer book are marked, 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, from which $\eta_0 = \sqrt{\mu_0/\epsilon_0} = 376.7\ \Omega$ and $c = 1/\sqrt{\mu_0\epsilon_0} = 3.00\times10^{8}$ m/s.

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.