MCQOPTIONS
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MCQOPTIONS
This section includes 14 Mcqs, each offering curated multiple-choice questions to sharpen your Electrical Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Find the value of x if the Mutual inductance is 20H, the inductance of coil 1 is xH and the inductance of coil 2 is 8H. The coupling coefficient is 5. |
| A. | 2H |
| B. | 4H |
| C. | 6H |
| D. | 8H |
| Answer» B. 4H | |
| 2. |
Find the value of x if the Mutual inductance is x H, the inductance of coil 1 is 2H and the inductance of coil 2 is 8H. The coupling coefficient is 5. |
| A. | 10H |
| B. | 20H |
| C. | 16H |
| D. | 15H |
| Answer» C. 16H | |
| 3. |
Find the coupling coefficient if the Mutual inductance is 20H, the inductance of coil 1 is 2H and the inductance of coil 2 is 8H. |
| A. | 5 |
| B. | 20 |
| C. | 2 |
| D. | 8 |
| Answer» B. 20 | |
| 4. |
Mutual inductance between two coupled coils depend on? |
| A. | Amount of flux linkage |
| B. | Rate of change of flux linkage |
| C. | Rate of change of current |
| D. | Flux density |
| Answer» C. Rate of change of current | |
| 5. |
FIND_THE_VALUE_OF_X_IF_THE_MUTUAL_INDUCTANCE_IS_X_H,_THE_INDUCTANCE_OF_COIL_1_IS_2H_AND_THE_INDUCTANCE_OF_COIL_2_IS_8H._THE_COUPLING_COEFFICIENT_IS_5.?$ |
| A. | 10H |
| B. | 20H |
| C. | 16H |
| D. | 15H |
| Answer» C. 16H | |
| 6. |
Find_the_value_of_x_if_the_Mutual_inductance_is_20H,_the_inductance_of_coil_1_is_xH_and_the_inductance_of_coil_2_is_8H._The_coupling_coefficient_is_5.$ |
| A. | 2H |
| B. | 4H |
| C. | 6H |
| D. | 8H |
| Answer» B. 4H | |
| 7. |
Find the coupling coefficient if the Mutual inductance is 20H, the inductance of coil 1 is 2H and the inductance of coil 2 is 8H? |
| A. | 5 |
| B. | 20 |
| C. | 2 |
| D. | 8 |
| Answer» B. 20 | |
| 8. |
What is the SI unit of coupling coefficient? |
| A. | H |
| B. | H<sup>-1</sup> |
| C. | No unit |
| D. | H<sup>2</sup> |
| Answer» D. H<sup>2</sup> | |
| 9. |
What happens to the coupling coefficient when the flux linkage of coil 1 and coil 2 increases? |
| A. | Increases |
| B. | Decreases |
| C. | Remains the same |
| D. | Becomes zero |
| Answer» B. Decreases | |
| 10. |
Which, among the following, is the correct formula to find the coupling coefficient? |
| A. | k=M/sqrt(L1L2) |
| B. | k=M/sqrt(L1<sup>2</sup>) |
| C. | k=M/sqrt(L2<sup>2</sup>) |
| D. | k=M/(L1L2) |
| Answer» B. k=M/sqrt(L1<sup>2</sup>) | |
| 11. |
Mutual inductance between to coupled coils depends on? |
| A. | Amount of flux linkage |
| B. | Rate of change of flux linkage |
| C. | Rate of change of current |
| D. | Flux density |
| Answer» C. Rate of change of current | |
| 12. |
Can the coupling coefficient practically ever be equal to 1? |
| A. | Yes |
| B. | No |
| C. | Depends on the current in coil 1 |
| D. | Depends on the current in coil 2 |
| Answer» C. Depends on the current in coil 1 | |
| 13. |
What is the coupling coefficient when there is ideal coupling? |
| A. | 0 |
| B. | 100 |
| C. | 1 |
| D. | Insufficient information provided |
| Answer» D. Insufficient information provided | |
| 14. |
What is the coupling coefficient when all the flux of coil 1 links with coil 2? |
| A. | 0 |
| B. | 100 |
| C. | 1 |
| D. | Insufficient information provided |
| Answer» D. Insufficient information provided | |