MCQOPTIONS
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MCQOPTIONS
This section includes 8 Mcqs, each offering curated multiple-choice questions to sharpen your Physics knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
The line of force in a magnetic field represents the direction at each point that a magnetic needle placed at the point takes up. Do they also represent the direction of the force on a moving charge at each point? |
| A. | Not possible |
| B. | Represent circular motion |
| C. | Represent tangential motion |
| D. | Represents translatory motion |
| Answer» B. Represent circular motion | |
| 2. |
Which among the following is the source of the magnetic field (magnetism)? |
| A. | Mechanical origin |
| B. | Electrical origin |
| C. | Chemical origin |
| D. | Potential origin |
| Answer» C. Chemical origin | |
| 3. |
Isolated magnetic poles exist. |
| A. | True |
| B. | False |
| Answer» C. | |
| 4. |
Which of the following is not a consequence of Gauss s law? |
| A. | The magnetic poles always exist as unlike pairs of equal strength |
| B. | If several magnetic lines of force enter a closed surface, then an equal number of lines of force must leave that surface |
| C. | There are abundant sources or sinks of the magnetic field inside a closed surface |
| D. | Isolated magnetic poles do not exist |
| Answer» D. Isolated magnetic poles do not exist | |
| 5. |
Calculate the surface integral of a magnetic field over a surface. |
| A. | Maximum |
| B. | Minimum |
| C. | Zero |
| D. | Equal to its magnetic flux through that surface |
| Answer» E. | |
| 6. |
When does a magnetic dipole possess maximum potential energy inside a magnetic field? |
| A. | Magnetic moment and magnetic field are antiparallel |
| B. | Magnetic moment and magnetic field are parallel |
| C. | The magnetic moment is zero |
| D. | The magnetic field is zero |
| Answer» B. Magnetic moment and magnetic field are parallel | |
| 7. |
What is the torque exerted by a bar magnet on itself due to its field? |
| A. | Maximum |
| B. | Zero |
| C. | Minimum |
| D. | Depends on the direction of the magnetic field |
| Answer» C. Minimum | |
| 8. |
What is the net magnetic flux through a closed surface? |
| A. | Positive |
| B. | Negative |
| C. | Zero |
| D. | Depends on the nature of the surface |
| Answer» D. Depends on the nature of the surface | |