Electromagnetic Field Theory and Transmission Lines

Objective Questions and Answers

An objective-type examination improves sharpness, prudent judgement, depth of knowledge, overall understanding, logic and concepts of the subject. A subjective-type examination improves communicaion and explanatory skills of the subject.

1. If Coulomb’s force on 2 C due to 5 C is 10a_x (N), the force on 5 C due to 2 C is
   1. –10a _x (N)
   2. 10a _x (N)
   3. 10a_y (N)
   4. –10a_y (N)
2. Gradient of a potential and equipotential surface are
   1. orthogonal to each other
   2. in the same direction
   3. out of phase
   4. at 45° with one another
3. The work in moving a charge between two points depends on
   1. the path
   2. Q, E and the path
   3. Q and E only
   4. Q, E and end points
4. Unit of potential is
   1. Joules
   2. N/C
   3. N/Joules
   4. Joules/C
5. Field due to infinitely long line charge ...