AIIMS 2002
- Exam
- AIIMS
- Year
- 2002
- Subject
- Physics
- Chapter
- Magnetic Properties of Matter
AIIMS 2002 · Physics · Magnetic Properties of Matter
Assertion : We cannot think of a magnetic field configuration with...
Assertion : We cannot think of a magnetic field configuration with three poles.
Reason : A bar magnet does exert a torque on itself due to its own field.
Options
- AIf both the assertion and reason are true and reason is a correct explanation of the assertion.
- BIf both assertion and reason are true but assertion is not a correct explanation of the assertion.
- CIf the assertion is true but the reason is false.
- DIf both assertion and reason are false.
Correct answer
D. If both assertion and reason are false.
Step-by-step solution
Magnetic poles always exist in pairs. However, one can imagine magnetic field configuration with three poles. When north poles of two magnets or south poles of two magnets are glued together, they provide a three pole field configuration. Also a bar magnet does not exert a torque on itself due to its own field.