61. For loss less transmission line L = 0.35 µH/m, C = 90 pF/m and frequency = 500 MHz. Then the magnitude of the propagation constant is
62. The intrinsic impedance of free space is
63. The magnitude of Coulomb's force of repulsion between two alpha particles (helium ions) in space 10 mm apart is:
64. If a transmission line terminated with a load equal to be characteristic impedance the reflection co-efficient is
65. The group delay function τ(ω) is related to phase function φ(ω) as
66. Blue colour of sky look due to
67. A vector \[\overrightarrow P \] is given by \[\overrightarrow P = {x^3}y{\overrightarrow a _x} - {x^2}{y^2}{\overrightarrow a _y} - {x^2}yz{\overrightarrow a _z}\]
Which of the following statements is TRUE?
Which of the following statements is TRUE?
68. The intensity of radiation of a dipole depends strongly on frequency. If at a frequency f, the intensity of radiation is '$$I$$' then at a frequency of $$\frac{{\text{f}}}{2}$$, the intensity will be:
69. A lossy transmission line has resistance per unit length-R = 0.01 Ω/m. The line is distortion less and has characteristic impedance of 100 Ω. The attenuation constant (in NP/m, correct to three decimal places) of the line is
70. A transmission line has a characteristic impedance of 50 Ω and a resistance of 0.1 Ω/m. If the line is distortion less, the attenuation constant (in Np/m) is
Read More Section(Electromagnetic Field Theory)
Each Section contains maximum 100 MCQs question on Electromagnetic Field Theory. To get more questions visit other sections.