Karnataka State Open University (KSOU) 2011 B.Tech Electrical Engineering- _Electromagnetic Theory - Question Paper
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;irntv ; - 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.
13. State and explain Poission equations.
lvcState and explain Maxwells equations. is 1
15. State and explain wave equation for conducting medium " ; J
16. Derive the transmission liheduatRsiK: ' ! 1 : /r>
Attachment: |
Earning: Approval pending. |