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. |
Find current density J when B = 50 x 10-6 units and area dS is 4 units. |
| A. | 9.94 |
| B. | 8.97 |
| C. | 7.92 |
| D. | 10.21 |
| Answer» B. 8.97 | |
| 2. |
Find the magnetic flux density B when E is given by 3sin y i + 4cos z j + ex k. |
| A. | ∫(4sin z i – ex j – 3cos y k)dt |
| B. | -∫(4sin z i – ex j – 3cos y k)dt |
| C. | ∫(4sin y i – ex j + 3cos y k)dt |
| D. | -∫(4sin y i + ex j + 3cos y k)dt |
| Answer» C. ∫(4sin y i – ex j + 3cos y k)dt | |
| 3. |
Find the magnetic flux density when a flux of 28 units is enclosed in an area of 15cm. |
| A. | 178.33 |
| B. | 186.67 |
| C. | 192.67 |
| D. | 124.33 |
| Answer» C. 192.67 | |
| 4. |
If ∫ H.dL = 0, then which statement will be true?a) E = -Grad(V)b) B = -Grad(D)c) H = -Grad(Vm)d) D = -Grad( |
| A. | E = -Grad(V) |
| B. | B = -Grad(D) |
| C. | H = -Grad(Vm) |
| D. | D = -Grad(A) |
| Answer» D. D = -Grad(A) | |
| 5. |
Find the magnetic field intensity when the flux density is 8 x 10-6 Tesla in the medium of air. |
| A. | 6.36 |
| B. | 3.66 |
| C. | 6.63 |
| D. | 3.36 |
| Answer» B. 3.66 | |
| 6. |
FIND_THE_MAGNETIC_FLUX_DENSITY_B_WHEN_E_IS_GIVEN_BY_3SIN_Y_I_+_4COS_Z_J_+_EX_K.?$ |
| A. | ∫(4sin z i – ex j – 3cos y k)dt |
| B. | -∫(4sin z i – ex j – 3cos y k)dt |
| C. | ∫(4sin y i – ex j + 3cos y k)dt |
| D. | -‚à´(4sin y i + ex j + 3cos y k)dt |
| Answer» C. ‚Äö√Ñ√∂‚àö‚Ƭ¨¬•(4sin y i ‚Äö√Ñ√∂‚àö√ë‚àö¬® ex j + 3cos y k)dt | |
| 7. |
Find current density J when B = 50 x 10-6 units and area dS is 4 units.$ |
| A. | 9.94 |
| B. | 8.97 |
| C. | 7.92 |
| D. | 10.21 |
| Answer» B. 8.97 | |
| 8. |
Find the magnetic flux density when a flux of 28 units is enclosed in an area of 15cm? |
| A. | 178.33 |
| B. | 186.67 |
| C. | 192.67 |
| D. | 124.33 |
| Answer» C. 192.67 | |
| 9. |
Find the magnetic flux density of the material with magnetic vector potential A = y i + z j + x k. |
| A. | i + j + k |
| B. | –i – j – k |
| C. | –i-j |
| D. | –i-k |
| Answer» C. ‚Äö√Ñ√∂‚àö√ë‚àö¬®i-j | |
| 10. |
If ‚à´ H.dL = 0, then which statement will be true?$ |
| A. | E = -Grad(V) |
| B. | B = -Grad(D) |
| C. | H = -Grad(Vm) |
| D. | D = -Grad(A) |
| Answer» D. D = -Grad(A) | |
| 11. |
Find the magnetic field intensity when the flux density is 8 x 10-6 Tesla in the medium of air. |
| A. | 6.36 |
| B. | 3.66 |
| C. | 6.63 |
| D. | 3.36 |
| Answer» B. 3.66 | |
| 12. |
Find the current when the magnetic field intensity is given by 2L and L varies as 0->1. |
| A. | 2 |
| B. | 1 |
| C. | 0.5 |
| D. | 0 |
| Answer» C. 0.5 | |
| 13. |
Find the flux contained by the material when the flux density is 11.7 Tesla and the area is 2 units. |
| A. | 23.4 |
| B. | 12.3 |
| C. | 32.4 |
| D. | 21.3 |
| Answer» B. 12.3 | |
| 14. |
The divergence of H will be |
| A. | 1 |
| B. | -1 |
| C. | ‚àû |
| D. | 0 |
| Answer» E. | |
| 15. |
Identify which of the following is the unit of magnetic flux density? |
| A. | Weber |
| B. | Weber/m |
| C. | Tesla |
| D. | Weber<sup>-1</sup> |
| Answer» D. Weber<sup>-1</sup> | |