21. Which one of the following statements does not pertain to the equation?
$$\nabla .\overrightarrow {\text{B}} = 0?$$
$$\nabla .\overrightarrow {\text{B}} = 0?$$
22. The magnitude of reflection coefficient is:
23. A 75 ohm transmission line is to be terminated in two resistive loads R1 and R2 such that the standing patterns in the two cases have the same SWR. To obtain the desired result, the values of R1 and R2 (in ohms) should be
24. Two lossy lines are to be joined end to end. The first line is 10 m long and has a loss rating of 0.20 dB/m. The second lines is 15 m long and has a loss rating of 0.10 dB/m. The reflection coefficient at the junction (line 1 to line 2) is Γ = 0.30. The input power (to line 1) is 100 mW. Determine the total loss of the combination in dB to the output end of line 2.
25. The potential (scalar) distribution is given as V = 10y4 + 20x3. If ε0 is the permittivity of free space, what is the charge density ρ at the point (2, 0)?
26. A plane wave propagating in the dielectric medium has an electric field given as Ex = E0 Cos(2.6 × 1010t - 100z). The phase velocity of plane wave is:
27. Given potential V = 2x2y + z2, then the electric field at (1, 1, 0) is
28. Maxwell's major contribution to EM theory was to assert
29. Consider the following statement about a transmission line having non-zero Parameters R, L, G and C:
1. By proper choice of the parameters, the line can be made lossless even though R and G are non-zero
2. The line will have both amplitude and phase distortion in general
Of the statements
1. By proper choice of the parameters, the line can be made lossless even though R and G are non-zero
2. The line will have both amplitude and phase distortion in general
Of the statements
30. With wavelength λ in increasing order, which one of the following combination is correct?
Read More Section(Electromagnetic Field Theory)
Each Section contains maximum 100 MCQs question on Electromagnetic Field Theory. To get more questions visit other sections.