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. |
Compute the power consumed by a material with current density 15 units in an area of 100 units. The potential measured across the material is 20V. |
| A. | 100kJ |
| B. | 250kJ |
| C. | 30kJ |
| D. | 15kJ |
| Answer» D. 15kJ | |
| 2. |
Calculate the power of a material with electric field 100 units at a distance of 10cm with a current of 2A flowing through it. |
| A. | 10 |
| B. | 20 |
| C. | 40 |
| D. | 80 |
| Answer» C. 40 | |
| 3. |
From the formula F = qE, can prove that work done is a product of force and displacement. State True/False |
| A. | True |
| B. | False |
| Answer» B. False | |
| 4. |
In electric fields, D= ε E. The correct expression which is analogous in magnetic fields will be |
| A. | H = μ B |
| B. | B = μ H |
| C. | A = μ B |
| D. | H = μ A |
| Answer» C. A = μ B | |
| 5. |
The resistance of a material with conductivity 2millimho/m2, length 10m and area 50m is |
| A. | 500 |
| B. | 200 |
| C. | 100 |
| D. | 1000 |
| Answer» D. 1000 | |
| 6. |
COMPUTE_THE_POWER_CONSUMED_BY_A_MATERIAL_WITH_CURRENT_DENSITY_15_UNITS_IN_AN_AREA_OF_100_UNITS._THE_POTENTIAL_MEASURED_ACROSS_THE_MATERIAL_IS_20V.?$ |
| A. | 100kJ |
| B. | 250kJ |
| C. | 30kJ |
| D. | 15kJ |
| Answer» D. 15kJ | |
| 7. |
CALCULATE_THE_POWER_OF_A_MATERIAL_WITH_ELECTRIC_FIELD_100_UNITS_AT_A_DISTANCE_OF_10CM_WITH_A_CURRENT_OF_2A_FLOWING_THROUGH_IT.?$ |
| A. | 10 |
| B. | 20 |
| C. | 40 |
| D. | 80 |
| Answer» C. 40 | |
| 8. |
From the formula F = qE, can prove that work done is a product of force and displacement. State True/Fals? |
| A. | True |
| B. | False |
| Answer» B. False | |
| 9. |
Find the force on a conductor of length 12m and magnetic flux density 20 units when a current of 0.5A is flowing through it. |
| A. | 60 |
| B. | 120 |
| C. | 180 |
| D. | 200 |
| Answer» C. 180 | |
| 10. |
In electric fields, D= ε E. The correct expression which is analogous in magnetic fields will be$ |
| A. | H = μ B |
| B. | B = μ H |
| C. | A = μ B |
| D. | H = μ A |
| Answer» C. A = ‚âà√≠¬¨‚à´ B | |
| 11. |
Find the current in a conductor with resistance 2 ohm, electric field 2 units and distance 100cm. |
| A. | 1A |
| B. | 10mA |
| C. | 10A |
| D. | 100mA |
| Answer» B. 10mA | |
| 12. |
Find the current density of a material with resistivity 20 units and electric field intensity 2000 units. |
| A. | 400 |
| B. | 300 |
| C. | 200 |
| D. | 100 |
| Answer» E. | |
| 13. |
Find the inductance of a coil with permeability 3.5, turns 100 and length 2m. Assume the area to be thrice the length. |
| A. | 131.94mH |
| B. | 94.131mH |
| C. | 131.94H |
| D. | 94.131H |
| Answer» B. 94.131mH | |
| 14. |
The resistance of a material with conductivity 2millimho/m2, length 10m and area 50m is |
| A. | 500 |
| B. | 200 |
| C. | 100 |
| D. | 1000 |
| Answer» D. 1000 | |
| 15. |
Calculate the capacitance of a material in air with area 20 units and distance between plates is 5m. |
| A. | 35.36pF |
| B. | 3.536pF |
| C. | 35.36nF |
| D. | 3.536nF |
| Answer» B. 3.536pF | |