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This section includes 12 Mcqs, each offering curated multiple-choice questions to sharpen your Electromagnetic Theory knowledge and support exam preparation. Choose a topic below to get started.
1. |
CALCULATE_THE_SKIN_DEPTH_OF_A_MATERIAL_WITH_ATTENUATION_CONSTANT_OF_2_UNITS.?$ |
A. | 2 |
B. | 1 |
C. | 0.5 |
D. | 4 |
Answer» D. 4 | |
2. |
An example for lossless propagation is$ |
A. | Dielectric waveguide propagation |
B. | Conductor propagation |
C. | Cavity resonator propagation |
D. | It is not possible |
Answer» E. | |
3. |
Calculate_the_phase_constant_of_a_wave_with_skin_depth_of_2.5_units.$ |
A. | 5/2 |
B. | 5 |
C. | 2 |
D. | 2/5 |
Answer» E. | |
4. |
Skin_depth_phenomenon_is_found_in_which_materials? |
A. | Insulators |
B. | Dielectrics |
C. | Conductors |
D. | Semiconductors |
Answer» D. Semiconductors | |
5. |
The intrinsic impedance is the ratio of square root o? |
A. | Permittivity to permeability |
B. | Permeability to permittivity |
C. | Phase constant to wavelength |
D. | Wavelength to phase constant |
Answer» C. Phase constant to wavelength | |
6. |
In lossy dielectric, the phase difference between the electric field E and the magnetic field H is |
A. | 90 |
B. | 60 |
C. | 45 |
D. | 0 |
Answer» E. | |
7. |
Which of the following is the correct relation between wavelength and the phase constant of a wave? |
A. | Phase constant = 2π/wavelength |
B. | Phase constant = 2π x wavelength |
C. | Phase constant = 1/(2π x wavelength) |
D. | Phase constant = wavelength/2π |
Answer» B. Phase constant = 2‚âà√¨‚àö√ë x wavelength | |
8. |
Calculate the velocity of a wave with frequency 2 x109 rad/s and phase constant of 4 x 108 units. |
A. | 0.5 |
B. | 5 |
C. | 0.2 |
D. | 2 |
Answer» C. 0.2 | |
9. |
For a lossless dielectric, the attenuation will be |
A. | 1 |
B. | 0 |
C. | -1 |
D. | Infinity |
Answer» C. -1 | |
10. |
Calculate the phase constant of a wave with frequency 12 rad/s and velocity 3√ó108 m/s(in 10-8 order)$ |
A. | 0.5 |
B. | 72 |
C. | 4 |
D. | 36 |
Answer» D. 36 | |
11. |
For a perfect dielectric, which parameter will be zero? |
A. | Conductivity |
B. | Frequency |
C. | Permittivity |
D. | Permeability |
Answer» B. Frequency | |
12. |
For a dielectric, the condition to be satisfied is |
A. | σ/ωε > 1 |
B. | σ/ωε < 1 |
C. | σ = ωε |
D. | ωε = 1 |
Answer» C. ‚âà√¨‚àö√¢ = ‚âà√¨‚àö¬¢‚âà√≠¬¨¬µ | |