MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 6 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. |
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. | t 10 |
| B. | t20 |
| C. | t40 |
| D. | t80 |
| Answer» C. t40 | |
| 2. |
From the formula F = qE, can prove that work done is a product of force and displacement. State True/False |
| A. | tTrue |
| B. | tFalse |
| Answer» B. tFalse | |
| 3. |
In electric fields, D= E. The correct expression which is analogous in magnetic fields will be |
| A. | tH = B |
| B. | tB = H |
| C. | tA = B |
| D. | tH = A |
| Answer» C. tA = B | |
| 4. |
Find the flux density of a conductor in the square of the centre of the loop having current 3.14A and radius is 1.414m in air. |
| A. | t8 x 10<sup>-7</sup> |
| B. | t4 x 10<sup>-7</sup> |
| C. | t6 x 10<sup>-7</sup> |
| D. | t2 x 10<sup>-7</sup> |
| Answer» B. t4 x 10<sup>-7</sup> | |
| 5. |
Identify the devices that do not use electromagnetic energy. |
| A. | tTelevision |
| B. | tWashing machine |
| C. | tMicrowave oven |
| D. | tMobile phones |
| Answer» C. tMicrowave oven | |
| 6. |
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. | t+z direction |
| B. | t z direction |
| C. | tEither +z or z direction |
| D. | tDoes not travel |
| Answer» D. tDoes not travel | |