Karnataka State Open University (KSOU) 2011 B.Tech Electrical Engineering- Electromagnetic Theory - Question Paper

IMMRIHMHR    EE 3005

III Semester B.Tech. In Electrical Engineering Examination, August 2011 ELECTROMAGNETIC TroORY

Time : 3 Hours    fc'ysi    -y/.y Max. Marks : 75

qmstiMs from Part A andanswerany five

questions frOfyfia$vQ₀    -fV yi^;?yy: ;.0

2) Each question carries 5 (five) marks in Part A and 10 (ten) marks in Part B. _:WBj _sAverse.-    v,nfc

PARTgJiy ._n    y-iy;2

Answer any five only :    .. My-wy:,b-a (5x5=25)

v .1 _t wr ....a.-..--

1.    Define curl and diveeiheDem. _r- y.yyiy wx yy\ ~'y yy ory ywKy

2.    Derive the equation for Amperes law cunentsete;irnt_v ;    - a Ki

3.    Explain Lorentz force equation.

4.    Derive the equation for parallel plate capacitor.

5.    Derive the boundary conditions for electric fields.

6.    Derive the equation for energy stored inductor.

7.    Derive the differential form of Maxwells equation.

8.    Explain pointing vector and pointing theorem.

PART - B

Answer any five only :    (5x10=50)

9.    i) State and explain Coulombs law of force.

ii) Two equally charged spheres repel each other with a force equal to a weight of 1 09 milligrams. If their centres are 20 cm apart, find the charge on each.

10'. ^rState'and explain Gauss Law. '    '    ^V'"^:;

¹¹ *    explain magnetic field intensity.    =! :

0 A wire carrying ia current of; 100 A is bent into a square form,10 cm sides.

12.    State and explain Biot-Savorat Law.