# V Semester

EI/EE/EC 501 Electromagnetic Theory

(2002 Admissions)

I. (a) Explain the transformation from Cartesian to cylindrical co-ordinate system.

(b) State and explain Stokes theorem.

OR

II.  (a) Explain Coulomb’s law and Gauss law.

(b) Discuss the expression for energy stored in a capacitor.

III. (a) What are the following? Explain.

(i)  Electric polarization

(ii) Poisson equation

(b) How does different boundary conditions affect D and E?

OR

IV. (a) State and explain Biot-Savart’s law and Amperes law.

(b) Derive the expression for energy stored in a magnetic field.

V. (a) State Faraday’s law of electromagnetic induction.

(b) What is self inductance?

(c) Explain the Maxwell’s wave equation in point form.

OR

VI. Derive the wave equation for free space and hence prove that uniform plane waves will not have field components in the direction of propagation.

VII. (a) State and explain Poynting theorem.

(b) Explain:

(i)  Snells law

(ii) Brewster angle

(ii) TE, TM waves

OR

VIII. Give the mathematical interpretation of a wave which falls normally in a dielectric.

IX. Explain the following:

(i) Characteristic impedance

(ii) VSWR

(iii) Stub matching

OR

X.  Explain rectangular waveguides and cylindrical waveguides.