NATIONAL OPEN UNIVERSITY OF NIGERIA
Plot 91, Cadastral Zone, Nnamdi Azikwe Express Way, Jabi-Abuja
FACULTY OF SCIENCES
DEPARTMENT OF MATHEMATICS
July Examination 2017_1
Course Code: MTH417
Course Title: Electromagnetic Theory Credit Unit: 3
Time Allowed: 3 Hours
Total: 70 Marks
INSTRUCTION: ANSWER QUESTION ONE(1) AND ANY OTHER 4 QUESTIONS
1. (a) Briefly explain Lorentz force (5 marks)
(b) Explain what constitutive relations in electromagnetic (5 marks)
(c) State the four fundamental constitutive relationships that descry be electromagnetic input
(8 marks)
(d) State Maxwell’s equations (4 marks)
2. (a) State Gauss’s divergence theorem and it’s mathematical expression (6 marks)
(b) State Stokes theorem and it’ s mathematical expression (6 marks)
3. (a) Explain Faraday’s electromagnetic induction (5 marks)
(b) State the four Maxwell’s macroscopic equations. (7 marks)
4. (a) Define Electromagnetic wave equation (3 marks)
(b) Derive wave equation for the electric field (9 marks)
5. (a) Apply Gauss’s divergence theorem to the first two Maxwell’s equations. Compare
their resulting equations (12 marks)
6. Explain briefly four Maxwell equations (12 marks)
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