Biju Patnaik University of Technology 2009 B.Tech Electronics and Communications Engineering Mathematics III - Question Paper
Mathematics Paper three ques. Paper.
3rd Semester.
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BSCM 2201 |
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Third Semester Examination - 2008 |
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MATHEMATICS - III | |
Full Marks-70 | |
Time: 3 Hours | |
* , Answer Question No. 1 which is compulsory | |
and any five from the rest. | |
The figures in the right-hand margin | |
indicate marks. | |
WWW. ibPUt.CsQeme following questions precisely : | |
2x10 | |
(a) Write V2u = uxx +uyy + uzz in spherical | |
coordinates. | |
P.T.O. |
Classify me partial differential equa"
(9) Find the poles of the function
(b)
414,- 4 + Oyy- 0-
/(*) =
with respective
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z - 3'
) findth? residue of f(z) = |
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z = 1
,JL z*0 f(z}={ xz + y
10 z-0
LU>
for differentiability at 2= 0.
Find the locus of the points satisfying theWWW,
(c) Test the function :
(d)
(h) Find the value of f f 1 dz
Jz-V
(i) Find the value of J
distance Jf from the left most 10 the string at a end at time r. 3. An insulated rod ol length I has .Is ends * and B maintained at O'C and 100C respectively until steady state condition prevail." the end B is suddenly reduced to 80C and the end A is suddenly ra.sed to 20C, then find the temperature distribution in the rod at time t. 5, Solve the following partial differential equations by Laplace transform . (aj ux + 2xu{ = 2x with u (x. 0) = 1 and u (0, f) - 1 where subscript denotes the partial derivative with respect to that 5 10 4. A rectangular plate with insulated surface 10 cm Wide and so long compared to its width that it may be considered infinite in length without introducing an appreciable error. If me BSCM 2201 4 variable. BSCM 2201 P.TO. Contd* |
temperature distribution u (x, y) along the edge y = 0 is given by : f20x, 0x<5 = jaOilO-x), 5x<10 while the other three edges are kept at 0eC, then find the temperature distribution at any point of the plate. 10 |
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