Download GTU BE/B.Tech 2019 Summer 5th Sem New 2151002 Engineering Electromagnetics Question Paper

Download GTU (Gujarat Technological University) BE/BTech (Bachelor of Engineering / Bachelor of Technology) 2019 Summer 5th Sem New 2151002 Engineering Electromagnetics Previous Question Paper

1
Seat No.: ________ Enrolment No.___________

GUJARAT TECHNOLOGICAL UNIVERSITY

BE - SEMESTER ?V (NEW) EXAMINATION ? SUMMER 2019
Subject Code: 2151002 Date: 06/06/2019

Subject Name: Engineering Electromagnetics

Time: 02:30 PM TO 05:00 PM Total Marks: 70

Instructions:

1. Attempt all questions.

2. Make suitable assumptions wherever necessary.

3. Figures to the right indicate full marks.


Q.1 (a) Define and explain DOT and CROSS products. 03
(b) Compare Cylindrical and spherical co-ordinate systems. 04
(c)
The three vertices of a triangle are located at A(6, -1, 2), B(-2, 3, -4) and C(-3, 1, 5).
Find: (a) R AB; (b) R AC; (c) the angle ? BAC at vertex A; (d) the (vector) projection of
R AB on R AC.

Find: (a) RAB; (b) RAC; (c) the angle ?BAC at vertex A; (d) the (vector) projection
of RAB on RAC.
07

Q.2 (a) Briefly explain streamlines and sketches of fields. 03
(b) State and prove Divergence theorem. 04
(c) Derive Maxwell?s first equation using Gauss?s law. 07
OR
(c) State and prove Gauss?s law. 07

Q.3 (a) State Coulombs Law. Also derive vector form of coulombs law. 03
(b)
A charge of ?0.3 ?C is located at A(25, -30, 15) (in cm), and a second charge of 0.5
?C is located at B(-10, 8, 12) (in cm). Find E at: (a) Origin, (b) P(15, 20, 50) (in cm).
04
(c) Derive equation of electric field intensity due to line charge. 07
OR
Q.3 (a) Define potential and potential difference. 03
(b)
Infinite uniform line charges of 5 nC/m lie along the (positive and negative) x and y
axes in free space. Find E at: (a) A(0, 0, 4); (b) (0, 3, 4).
04
(c) State and explain Faraday?s law. 07

Q.4 (a)
Explain measurement of curl using curl meter.
03
(b) Define and explain current and current density. 04
(c) Write short note on boundary conditions for metallic conductors. 07
OR
Q.4 (a) Write Poisson?s and Laplace?s equations. 03
(b) Briefly explain Hall effect. 04
(c) Write short note on magnetic boundary conditions. 07
Q.5 (a) Write Maxwell?s equations in point and integral form. 03
(b) Briefly explain skin effect. 04
(c) State and explain Amperes circuital law. 07
OR

Q.5 (a) For TEM waves, prove that E.H = 0. 03
(b) Briefly explain stokes theorem. 04
(c) State and explain Biot-Savart law. 07

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