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04-BS-9: December 2013

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

  1. Question 1 Potential Inside a Point-Charge-Plus-Layer Distribution
  2. Question 2 On-Axis B Field of a Finite Cylindrical Current Layer
  3. Question 3 H Field Between Two Antiparallel Infinite Current Sheets
  4. Question 4 RMS EMF of a Loop Rotating in a Uniform Field
  5. Question 5 Circular Capacitor — Capacitance and Breakdown-Limited Energy
  6. Question 6 Inductance of a Solenoid on a Cored Winding
  7. Question 7 E Field of a Plane Wave from Maxwell's Equations
  8. Question 8 Power Delivered and Power Lost — Two Parallel Transmission Lines

Start with Question 1 →

National Exams — December 2013 — 04-BS-9 Basic Electromagnetics. Three-hour, closed-book exam (approved Casio/Sharp calculator only). Aids given: $\varepsilon_0=8.85\times10^{-12}$ F/m, $\mu_0=4\pi\times10^{-7}$ H/m, $e=1.6\times10^{-19}$ C. Format: eight questions offered; any five constitute a complete paper and only the first five appearing in the answer book are marked. All eight are solved below for completeness.

Reference texts: Sadiku, Elements of Electromagnetics / Hayt & Buck, Engineering Electromagnetics — electrostatics, Gauss's law, capacitance, magnetostatics, Faraday's law, Maxwell's equations and displacement current; Young & Freedman, University Physics with Modern Physics — induced EMF in a rotating loop, plane-wave impedance.