ELECTROMAGNETIC FIELD THEORY, exam paper, UPTU, Exams of Electromagnetism and Electromagnetic Fields Theory

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to Printed Pages : 4 TEC - 401 (Following Paper ID and Roll No. to be filled in your Answer Book) PSM FOINO( TT TT TTL B. Tech. (SEM. IV) EXAMINATION, 2006-07 ELECTRO MAGNETIC FIELD THEORY Time : 3 Hours] {Total Marks : 100 Note : Attempt all the questions. 1 Attempt any four of the following : (a) Write down gradient of any scalar and 5 divergence and curl of any vector. A in different co-ordinate system. -_ > x x a (bh) Tf A=aay+2ay+10a, and 5 > A A “ B=40 ay +8ay—-204; find out the value of a for which the two vectors become perpendicular. (©) Given points A(x =2,y=3,z= -1) and 5 B(p =4,o=-50°, z= 2) find the distance A to B. (d) State the word statement of Coulomb's law 5 of forces. Three point charges g, =10-6C, 4 =-10-6C and gy =0.5x10°C are located in air at the comers of an equilateral triangle of 50 cm side. Determine the magnitude and direction of the force of 43. V-3081] 1 [Contd...