MCQOPTIONS
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MCQOPTIONS
This section includes 15 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 energy of a coil depends on the turns. State True/False. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 2. |
Find the turns in an solenoid of inductance 23.4mH , current 2A and area 15cm. |
| A. | 900 |
| B. | 400 |
| C. | 498 |
| D. | 658 |
| Answer» D. 658 | |
| 3. |
Find the power of an inductor of 5H and current 4.5A after 2 seconds. |
| A. | 25.31 |
| B. | 50.62 |
| C. | 102.4 |
| D. | 204.8 |
| Answer» B. 50.62 | |
| 4. |
Calculate the magnetic energy when the magnetic flux density is given by 32 units(in 108 order) |
| A. | 4.07 |
| B. | 7.4 |
| C. | 0.47 |
| D. | 7.04 |
| Answer» B. 7.4 | |
| 5. |
Calculate the magnetic energy when the magnetic intensity in air is given as 14.2 units(in 10-4 order) |
| A. | 1.26 |
| B. | 2.61 |
| C. | 6.12 |
| D. | 1.62 |
| Answer» B. 2.61 | |
| 6. |
FIND_THE_TURNS_IN_AN_SOLENOID_OF_INDUCTANCE_23.4MH_,_CURRENT_2A_AND_AREA_15CM.?$ |
| A. | 900 |
| B. | 400 |
| C. | 498 |
| D. | 658 |
| Answer» D. 658 | |
| 7. |
The_energy_of_a_coil_depends_on_the_turns._State_True/False.$ |
| A. | True |
| B. | False |
| Answer» B. False | |
| 8. |
Find the power of an inductor of 5H and current 4.5A after 2 seconds? |
| A. | 25.31 |
| B. | 50.62 |
| C. | 102.4 |
| D. | 204.8 |
| Answer» B. 50.62 | |
| 9. |
Find the inductance when the energy is given by 2 units with a current of 16A. |
| A. | 15.6mH |
| B. | 16.5mH |
| C. | 16.8mH |
| D. | 15.8mH |
| Answer» B. 16.5mH | |
| 10. |
Calculate the energy when the magnetic intensity and magnetic flux density are 15 and 65 respectively. |
| A. | 755 |
| B. | 487.5 |
| C. | 922 |
| D. | 645 |
| Answer» C. 922 | |
| 11. |
Calculate the magnetic energy when the magnetic flux density is given by 32 units(in 108 order) |
| A. | 4.07 |
| B. | 7.4 |
| C. | 0.47 |
| D. | 7.04 |
| Answer» B. 7.4 | |
| 12. |
Calculate the magnetic energy when the magnetic intensity in air is given as 14.2 units(in 10-4 order) |
| A. | 1.26 |
| B. | 2.61 |
| C. | 6.12 |
| D. | 1.62 |
| Answer» B. 2.61 | |
| 13. |
Find the inductance of a material with 100 turns, area 12 units and current of 2A in air. |
| A. | 0.75mH |
| B. | 7.5mH |
| C. | 75mH |
| D. | 753mH |
| Answer» B. 7.5mH | |
| 14. |
Find the work done in an inductor of 4H when a current 8A is passed through it? |
| A. | 256 |
| B. | 128 |
| C. | 64 |
| D. | 512 |
| Answer» C. 64 | |
| 15. |
Find the induced EMF in an inductor of 2mH and the current rate is 2000 units. |
| A. | 4 |
| B. | -4 |
| C. | 1 |
| D. | -1 |
| Answer» C. 1 | |