MCQOPTIONS
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MCQOPTIONS
This section includes 13 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. |
The intrinsic angle of the wave with a loss angle of 60 is |
| A. | 120 |
| B. | 60 |
| C. | 90 |
| D. | 30 |
| Answer» E. | |
| 2. |
The complex permittivity is given by 2-j. Find the loss tangent. |
| A. | 1/2 |
| B. | -1/2 |
| C. | 2 |
| D. | -2 |
| Answer» B. -1/2 | |
| 3. |
Find the loss angle in degrees when the loss tangent is 1. |
| A. | 0 |
| B. | 30 |
| C. | 45 |
| D. | 90 |
| Answer» D. 90 | |
| 4. |
THE_COMPLEX_PERMITTIVITY_IS_GIVEN_BY_2-J._FIND_THE_LOSS_TANGENT.?$ |
| A. | 1/2 |
| B. | -1/2 |
| C. | 2 |
| D. | -2 |
| Answer» B. -1/2 | |
| 5. |
The_intrinsic_angle_of_the_wave_with_a_loss_angle_of_60_is$ |
| A. | 120 |
| B. | 60 |
| C. | 90 |
| D. | 30 |
| Answer» E. | |
| 6. |
Find the loss angle in degrees when the loss tangent is 1? |
| A. | 0 |
| B. | 30 |
| C. | 45 |
| D. | 90 |
| Answer» D. 90 | |
| 7. |
The expression for the loss tangent is given by |
| A. | σ/ωε |
| B. | ωε/σ |
| C. | σ/ω |
| D. | ω/ε |
| Answer» B. ‚âà√¨‚àö¬¢‚âà√≠¬¨¬µ/‚âà√¨‚àö√¢ | |
| 8. |
The loss tangent of a wave propagation with an intrinsic angle of 20 degree is |
| A. | Tan 20 |
| B. | Tan 40 |
| C. | Tan 60 |
| D. | Tan 80 |
| Answer» C. Tan 60 | |
| 9. |
The loss tangent is also referred to as |
| A. | Attenuation |
| B. | Propagation |
| C. | Dissipation factor |
| D. | Polarization |
| Answer» D. Polarization | |
| 10. |
Find the loss tangent of a material with conduction current density of 5 units and displacement current density of 10 units. |
| A. | 2 |
| B. | 0.5 |
| C. | 5 |
| D. | 10 |
| Answer» C. 5 | |
| 11. |
At high frequencies, which parameter is significant? |
| A. | Conduction current |
| B. | Displacement current |
| C. | Attenuation constant |
| D. | Phase constant |
| Answer» C. Attenuation constant | |
| 12. |
Calculate the conduction current density when the resistivity of a material with an electric field of 5 units is 4.5 units. |
| A. | 22.5 |
| B. | 4.5/5 |
| C. | 5/4.5 |
| D. | 9.5 |
| Answer» D. 9.5 | |
| 13. |
The loss tangent refers to the |
| A. | Power due to propagation in conductor to that in dielectric |
| B. | Power loss |
| C. | Current loss |
| D. | Charge loss |
| Answer» B. Power loss | |