MCQOPTIONS
Saved Bookmarks
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. |
A cable of core radius 1.25cm and impregnated paper insulation of thickness 2.13cm and relative permittivity 3.5. Compute the capacitance of the cable/km(in nF) |
| A. | 195.7 |
| B. | 179.5 |
| C. | 157.9 |
| D. | 197.5 |
| Answer» B. 179.5 | |
| 2. |
The capacitance of a material refers to |
| A. | Ability of the material to store magnetic field |
| B. | Ability of the material to store electromagnetic field |
| C. | Ability of the material to store electric field |
| D. | Potential between two charged plates |
| Answer» D. Potential between two charged plates | |
| 3. |
Compute the capacitance between two concentric shells of inner radius 2m and the outer radius is infinitely large. |
| A. | 0.111 nF |
| B. | 0.222 nF |
| C. | 4.5 nF |
| D. | 5.4 nF |
| Answer» C. 4.5 nF | |
| 4. |
A_CABLE_OF_CORE_RADIUS_1.25CM_AND_IMPREGNATED_PAPER_INSULATION_OF_THICKNESS_2.13CM_AND_RELATIVE_PERMITTIVITY_3.5._COMPUTE_THE_CAPACITANCE_OF_THE_CABLE/KM(IN_NF)?$ |
| A. | 195.7 |
| B. | 179.5 |
| C. | 157.9 |
| D. | 197.5 |
| Answer» B. 179.5 | |
| 5. |
THE_CAPACITANCE_OF_A_MATERIAL_REFERS_TO?$ |
| A. | Ability of the material to store magnetic field |
| B. | Ability of the material to store electromagnetic field |
| C. | Ability of the material to store electric field |
| D. | Potential between two charged plates |
| Answer» D. Potential between two charged plates | |
| 6. |
Compute the capacitance between two concentric shells of inner radius 2m and the outer radius is infinitely large? |
| A. | 0.111 nF |
| B. | 0.222 nF |
| C. | 4.5 nF |
| D. | 5.4 nF |
| Answer» C. 4.5 nF | |
| 7. |
Calculate the capacitance of two parallel plates of area 2 units separated by a distance of 0.2m in air(in picofarad) |
| A. | 8.84 |
| B. | 88.4 |
| C. | 884.1 |
| D. | 0.884 |
| Answer» C. 884.1 | |
| 8. |
Find the capacitance when charge is 20 C has a voltage of 1.2V. |
| A. | 32.67 |
| B. | 16.67 |
| C. | 6.67 |
| D. | 12.33 |
| Answer» C. 6.67 | |
| 9. |
Find the time constant for a R-C circuit for resistance R = 24 kohm and C = 16 microfarad. |
| A. | 1.5 millisecond |
| B. | 0.6 nanosecond |
| C. | 384 millisecond |
| D. | 384 microsecond |
| Answer» D. 384 microsecond | |
| 10. |
Find the time constant in a series R-L circuit when the resistance is 4 ohm and the inductance is 2 H. |
| A. | 0.25 |
| B. | 0.2 |
| C. | 2 |
| D. | 0.5 |
| Answer» E. | |
| 11. |
A infinite resistance is considered as a/an |
| A. | Closed path(short circuit) |
| B. | Open path |
| C. | Not defined |
| D. | Ammeter with zero reading |
| Answer» C. Not defined | |
| 12. |
A resistor value of colour code orange violet orange will be |
| A. | 37 kohm |
| B. | 37 Mohm |
| C. | 48 kohm |
| D. | 48 Mohm |
| Answer» B. 37 Mohm | |
| 13. |
Find the resistivity of a material having resistance 20kohm, area 2 units and length of 12m. |
| A. | 6666.6 |
| B. | 3333.3 |
| C. | 1200 |
| D. | 2000 |
| Answer» C. 1200 | |