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17-Phys-A3 Electromagnetics: Undated paper

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

  1. Question 1 Oblique Incidence at a Free-Space–Silica Interface
  2. Question 2 Steady-State Standing Wave on a Complex-Loaded Line
  3. Question 3 Step Response on a Mismatched Transmission Line
  4. Question 4 Rectangular Tunnel as a Waveguide — Cutoff and Evanescent Decay
  5. Question 5 Electric Field and Voltage of a Radially-Varying Spherical Charge
  6. Question 6 Axial Resistance, Current Density and Power of a Solid Cylindrical Resistor
  7. Question 7 Superposed D and E Fields of an Infinite Line Charge and a Point Charge
  8. Question 8 Magnetic Field of a Wire with Radially-Varying Current Density
  9. Question 9 On-Axis Vector Potential, Magnetic Field and Flux of a Current Loop
  10. Question 10 Radiation Resistance, Efficiency and Field Intensity of a Steel Wire Antenna

Start with Question 1 →

17-Phys-A3, Electromagnetics — National Exam, May 2019. 3-hour closed-book exam (Casio or Sharp approved calculators only, one 8.5″×11″ aid sheet); any FIVE of the printed questions constitute a complete exam paper and only the first five as they appear in a candidate's answer book are marked, each of equal value, with full justification required for marks. All ten printed questions are solved below as a complete study resource.

Reference texts: Sadiku, Elements of Electromagnetics (7th ed.) — plane waves and boundaries, Gauss's law, resistance and current density, magnetostatics; Hayt & Buck, Engineering Electromagnetics (9th ed.) — transmission-line transients and bounce diagrams; Pozar, Microwave Engineering (4th ed.) — transmission-line theory, rectangular waveguide cutoff; Balanis, Antenna Theory: Analysis and Design (4th ed.) — short-dipole radiation resistance and efficiency.