MCQOPTIONS
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MCQOPTIONS
This section includes 8 Mcqs, each offering curated multiple-choice questions to sharpen your Electromagnetic Theory Questions and Answers knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Transform the vector (4,-2,-4) at (1,2,3) into spherical coordinates. |
| A. | 3.197i – 2.393j + 4.472k |
| B. | -3.197i + 2.393j – 4.472k |
| C. | 3.197i + 2.393j + 4.472k |
| D. | -3.197i – 2.393j – 4.472k |
| Answer» C. 3.197i + 2.393j + 4.472k | |
| 2. |
The scalar factor of spherical coordinates is |
| A. | 1, r, r sin θ |
| B. | 1, r, r |
| C. | r, r, 1 |
| D. | r, 1, r |
| Answer» B. 1, r, r | |
| 3. |
The area of sphere can be computed from the sphere volume. State True/False. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 4. |
Find the spherical coordinates of A(2,3,-1) |
| A. | (3.74, 105.5⁰, 56.13⁰) |
| B. | (3.74, 105.5⁰, 56.31⁰) |
| C. | (3.74, 106.5⁰, 56.13⁰) |
| D. | (3.74, 106.5⁰, 56.31⁰) |
| Answer» C. (3.74, 106.5⁰, 56.13⁰) | |
| 5. |
Choose which of following condition is not required for a waveguide to exist. |
| A. | The dimensions should be in accordance with desired frequency |
| B. | Cut-off frequency should be minimum 6GHz |
| C. | The shape should be spherical |
| D. | No specific condition is required for waveguide design |
| Answer» D. No specific condition is required for waveguide design | |
| 6. |
Spherical systems are employed in waveguides. State True/False |
| A. | True |
| B. | False |
| Answer» C. | |
| 7. |
Example of spherical system in the following is |
| A. | Charge in space |
| B. | Charge in box |
| C. | Charge in dielectric |
| D. | Uncharged system |
| Answer» B. Charge in box | |
| 8. |
Convert the point (3,4,5) from Cartesian to spherical coordinates |
| A. | (7.07,45⁰,53⁰) |
| B. | (0.707,45⁰,53⁰) |
| C. | (7.07,54⁰,63⁰) |
| D. | (0.707,54⁰,63⁰) |
| Answer» B. (0.707,45⁰,53⁰) | |