Assertion (A) : No two magnetic field lines are found to cross each other. Reason (R) : The compass needle cannot point towards two directions at the point of intersection of two magnetic field lines.
Assertion (A) : No two magnetic field lines are found to cross each other. Reason (R) : The compass needle cannot point towards two directions at the point of intersection of two magnetic field lines.
Options
Official answer
Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of Assertion (A).
Marking scheme
- 1.1 mark
Hint
Recall the properties of magnetic field lines and the behavior of compass needles in a magnetic field.
Quick oral answer
No two magnetic field lines are found to cross each other because the compass needle cannot point towards two directions at the point of intersection of two magnetic field lines.
Common mistakes
- 1.thinking that magnetic field lines can cross each other
- 2.not understanding the behavior of compass needles in a magnetic field
Analysis and explanation
The assertion states that no two magnetic field lines are found to cross each other. This is a fundamental property of magnetic field lines. The reason explains that if two magnetic field lines were to cross each other, the compass needle would point towards two directions at the point of intersection, which is not possible. Therefore, both the assertion and reason are true, and the reason is the correct explanation of the assertion.
Interesting facts
Magnetic field lines are used to visualize the magnetic field around a magnet or a current-carrying conductor.
The direction of the magnetic field is indicated by the direction of the compass needle.
Question details
Q19 of 39 questions
- Board
- CBSE
- Class
- Class 10
- Subject
- Science
- Year
- 2025
- Section
- Section A
- Marks
- 1
- Type
- MCQ
- Chapter
- Magnetic Effects of Electric Current
- Topic
- Magnetic Field Lines
- Bloom's level
- Remembering
- Syllabus topic
- Magnetic Effects of Electric Current
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Frequently asked questions
How many marks does this question carry in CBSE Class 10 Science 2025?
This question carries 1 mark in the CBSE Class 10 Science 2025 examination.
Which chapter does this question come from in Science?
This question is from the chapter "Magnetic Effects of Electric Current" in the CBSE Class 10 Science syllabus.
What topic does this question cover in Science?
This question covers the topic "Magnetic Field Lines" from CBSE Class 10 Science.
What type of question is this in the CBSE Class 10 Science 2025 paper?
This is a MCQ question from Section A in the CBSE Class 10 Science 2025 paper.