MCQOPTIONS
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MCQOPTIONS
This section includes 13 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 time taken for the current in an inductor to change to 2A from 0A if the power in the inductor is 5W. The value of inductance is 10H. |
| A. | 1s |
| B. | 2s |
| C. | 3s |
| D. | 4s |
| Answer» E. | |
| 2. |
Calculate the current in an inductor if the energy stored is 160J and the inductance is 20H. |
| A. | 1A |
| B. | 2A |
| C. | 3A |
| D. | 4A |
| Answer» E. | |
| 3. |
Calculate the value of emf in an inductor if the value of inductance is 15H and an average current of 5A flows through it in 10s. |
| A. | 15V |
| B. | 7.5V |
| C. | 10V |
| D. | 5.5V |
| Answer» C. 10V | |
| 4. |
What is the energy stored in the magnetic field if the current in a coil has a constant inductance of L henrys grows at a uniform rate? |
| A. | LI/2 |
| B. | LI2/2 |
| C. | L/2I |
| D. | L/2I2 |
| Answer» C. L/2I | |
| 5. |
CALCULATE_THE_CURRENT_IN_AN_INDUCTOR_IF_THE_ENERGY_STORED_IS_160J_AND_THE_INDUCTANCE_IS_20H.?$ |
| A. | 1A |
| B. | 2A |
| C. | 3A |
| D. | 4A |
| Answer» E. | |
| 6. |
Find_the_time_taken_for_the_current_in_an_inductor_to_change_to_2A_from_0A_if_the_power_in_the_inductor_is_5W._The_value_of_inductance_is_10H.$ |
| A. | 1s |
| B. | 2s |
| C. | 3s |
| D. | 4s |
| Answer» E. | |
| 7. |
Calculate the value of emf in an inductor if the value of inductance is 15H and an average current of 5A flows through it in 10s? |
| A. | 15V |
| B. | 7.5V |
| C. | 10V |
| D. | 5.5V |
| Answer» C. 10V | |
| 8. |
Calculate the emf induced in an inductor if the inductance is 10H and the current is 2A in 4s. |
| A. | 2.5V |
| B. | 1.5V |
| C. | 3.5V |
| D. | 5V |
| Answer» B. 1.5V | |
| 9. |
Calculate the value of stored energy in an inductor if the value of inductance is 20H and 4A of current flows through it. |
| A. | 220J |
| B. | 150J |
| C. | 190J |
| D. | 160J |
| Answer» E. | |
| 10. |
Calculate the power in an inductive circuit if the inductance is 10H, the current flowing in the inductor is 2A in 4s. |
| A. | 50W |
| B. | 4W |
| C. | 5W |
| D. | 10W |
| Answer» D. 10W | |
| 11. |
Find the average current in an inductor if the total current in the inductor is 26A. |
| A. | 10A |
| B. | 26A |
| C. | 13A |
| D. | 5A |
| Answer» D. 5A | |
| 12. |
What is the power in the magnetic field if the current in a coil has a constant inductance of L henrys grows at a uniform rate? |
| A. | LI/2t |
| B. | LI<sup>2</sup>/2t |
| C. | L/2It |
| D. | L/2I<sup>2</sup>t |
| Answer» C. L/2It | |
| 13. |
If the current in a coil having a constant inductance of L henrys grows at a uniform rate, what is the value of the average current? |
| A. | I |
| B. | I/2 |
| C. | I/4 |
| D. | 0 |
| Answer» C. I/4 | |