41. If the magnitude of $$\overrightarrow {\text{H}} $$ in a plane wave is 1 A/m, what is the magnitude of $$\overrightarrow {\text{E}} $$ for a plane wave in free space:
42. The time averaged Poynting vector, in W/m2, for a wave with $$\overrightarrow E = 24{e^{j\left( {\omega t + Bz} \right)}}{\overrightarrow a _y}{\text{V/m}}$$ in free space
43. In a medium if ε, µ, and σ are constant through out the medium, then it is known as:
44. If φ = 2x2y - xz3, then the Laplacian of φ is
45. The loss-less, quarter wavelength long, RF transmission of characteristic impedance 50 Ω is terminated in pure resistive load impedance 100 Ω, the input impedance is:
46. A loss-less 50 ohm transmission line is terminated in (A) 25 ohm and (B) 100 ohm loads. Which one of the following statements would be correct, if the voltage standing wave patterns measured in the two cases are compared?
47. The main components of atmosphere responsible for absorption of electromagnetic waves are
48. The region between two concentric cylinder with radii of 2 and 5 cm contains a volume charge distribution of -10-8(1 + 10r) C/m3. If Er and V both are zero at the inner cylinder and ε = ε0, the potential V at the outer cylinder will be:
49. Find the gradient of the curve y = 3x2 -7x + 2 at the point (1, -2):
50. The characteristic impedance of a transmission line with inductance 0.294 µH/m and capacitance 60 pF/m, is
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