MCQOPTIONS
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MCQOPTIONS
This section includes 12 Mcqs, each offering curated multiple-choice questions to sharpen your Electrical Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
The relation between the direction of current and the direction of magnetic field is? |
| A. | Same direction |
| B. | Opposite direction |
| C. | Perpendicular |
| D. | Unrelated |
| Answer» D. Unrelated | |
| 2. |
When an electric current flows out of the page, what is the direction of the magnetic field? |
| A. | Clockwise |
| B. | Anti-clockwise |
| C. | Cannot be determined |
| D. | Parallel to the current |
| Answer» C. Cannot be determined | |
| 3. |
Unit of MMF is ______________ |
| A. | A/m |
| B. | A-m |
| C. | A |
| D. | unitless |
| Answer» D. unitless | |
| 4. |
Magnetomotive force is equal to__________________ |
| A. | current * number of turns |
| B. | current / number of turns |
| C. | current / number of turns per unit length |
| D. | current * number of turns per unit length |
| Answer» B. current / number of turns | |
| 5. |
THE_RELATION_BETWEEN_THE_DIRECTION_OF_CURRENT_AND_THE_DIRECTION_OF_MAGNETIC_FIELD_IS??$ |
| A. | Same direction |
| B. | Opposite direction |
| C. | Perpendicular |
| D. | Unrelated |
| Answer» D. Unrelated | |
| 6. |
When an electric current flows into the page, what is the direction of the magnetic field? |
| A. | Clockwise |
| B. | Anti-clockwise |
| C. | Cannot be determined |
| D. | Parallel to the current |
| Answer» B. Anti-clockwise | |
| 7. |
When a bar magnet is broken into two pieces, which of the following are true? |
| A. | The magnet loses its magnetism |
| B. | The magnet has only north pole left |
| C. | The magnet has only south pole left |
| D. | The magnet turns into two new bar magnets |
| Answer» E. | |
| 8. |
Magnetic force lines ___________ at the north pole. |
| A. | Emerge |
| B. | Converge |
| C. | Neither emerge nor converge |
| D. | Either emerge or converge |
| Answer» B. Converge | |
| 9. |
The direction of the magnetic lines of force are? |
| A. | From north pole to south pole |
| B. | From south pole to north pole |
| C. | No specific direction |
| D. | From one end of the magnet to the other |
| Answer» B. From south pole to north pole | |
| 10. |
Magnetic field exists along which of the following? |
| A. | Moving charges |
| B. | Stationary charges |
| C. | Copper |
| D. | Iron |
| Answer» B. Stationary charges | |
| 11. |
Materials having good retentivity are? |
| A. | Strong magnets |
| B. | Weak magnets |
| C. | Temporary magnets |
| D. | Permanent magnets |
| Answer» D. Permanent magnets | |
| 12. |
What is a permeable substance? |
| A. | Any good conductor |
| B. | Any bad conductor |
| C. | Any strong magnet |
| D. | Any substance through which the magnetic lines of force can pass easily |
| Answer» E. | |