Reg No.:

Max. Marks: 100

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F1009 Pages: 2

Name:

APJ ABDUL KALAM TECHNOLOGICAL UNIVERSITY
SIXTH SEMESTER B.TECH DEGREE EXAMINATION(R&S), MAY 2019

Course Code: EE302
Course Name: ELECTROMAGNETICS

PARTA
Answer all questions, each carries 5 marks.

Find the divergence of A where A= ൧: singa, + 3௯” 005,

Define equipotential surface?

Explain Biot-Savart Law.

Derive Maxwell’s equations in differential and integral form from Faraday’s
Law

What is displacement current?

Apply Poynting theorem to derive an expression for power flowing through a
co-axial cable

Compute the phase constant and attenuation constant for a uniform plane wave
having frequency 100117 in a lossy dielectric material for which u = [10 + & =
2.3 and 6 = 2.56107 U/m.

What is electromagnetic interference? What are its causes?

PART B
Answer any two full questions, each carries 10 marks.

State and Prove Stoke’s Theorem

What is Curl of a vector field? Explain its physical significance.

State and Prove Gauss’s law.

Apply Gauss’s law to find the expression for Electric field Intensity and
Electric flux density due an infinite line charge distribution.

Explain the concept of electric potential and potential gradient.

Explain spherical co-ordinate system.

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Duration: 3 Hours

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