MCQOPTIONS
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MCQOPTIONS
This section includes 6 Mcqs, each offering curated multiple-choice questions to sharpen your Electromagnetic Theory Questions and Answers 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. | a)100kJ |
| B. | b)250kJ |
| C. | c)30kJ |
| D. | d)15kJ |
| Answer» D. d)15kJ | |
| 2. |
In electric fields, D= ε E. The correct expression which is analogous in magnetic fields will be |
| A. | a)H = μ B |
| B. | b)B = μ H |
| C. | c)A = μ B |
| D. | d)H = μ A |
| Answer» C. c)A = μ B | |
| 3. |
The resistance of a material with conductivity 2millimho/m2, length 10m and area 50m is |
| A. | a)500 |
| B. | b)200 |
| C. | c)100 |
| D. | d)1000 |
| Answer» D. d)1000 | |
| 4. |
Which type of flux will increase the inductance? |
| A. | a)Series aiding |
| B. | b)Series opposing |
| C. | c)Shunt aiding |
| D. | d)Shunt opposing |
| Answer» B. b)Series opposing | |
| 5. |
When the electric field travels in +x direction and the EM wave is travelling the –y direction, then the magnetic field will be travelling in which direction? |
| A. | a)+z direction |
| B. | b)–z direction |
| C. | c)Either +z or –z direction |
| D. | d)Does not travel |
| Answer» D. d)Does not travel | |
| 6. |
Find the magnetic field intensity of a material with flux density of 24 units in air(in 106 order) |
| A. | a)19.09 |
| B. | b)21 |
| C. | c)25 |
| D. | d)26.78 |
| Answer» B. b)21 | |