✓ Board-verified
Science · 2023 · 1 mark
CBSE 2023 · Region 5 · Set 1 · Q20
Assertion (A): Two magnetic field lines around a current carrying straight wire do not intersect each other.
Reason (R): The magnitude of the magnetic field produced at a given point increases as the current through the wire increases.
Official answer
From CBSE’s own marking scheme for this paper.
(B)
Both Assertion (A) and Reason (R) are true, but Reason (R) is not the correct explanation of the Assertion (A).
More from Magnetic Effects of Electric Current
- On the basis of the given circuit arrangement, answer the following questions: What happens to the rod AB…2026 · asked 3×
- A rectangular loop ABCD carrying a current I is situated near a straight conductor XY, such that the…2024 · asked 3×
- The magnetic field inside a long straight current carrying solenoid:2023 · asked 3×
- Explain in brief the function of an electric fuse in a domestic circuit. An electric heater of current rating…2024 · asked 3×
- Assertion: With the help of compass, magnetic field lines can be traced outside the bar magnet. Reason (R):…2026 · asked 3×
- In order to obtain magnetic field lines around a bar magnet, a student performed an experiment using a…2025 · asked 3×
- Assertion: The strength of the magnetic field produced at the centre of a current carrying circular coil…2023 · asked 3×
- Describe an activity to show that a current carrying conductor, placed in an external magnetic field…2026 · asked 3×
CBSE Class 10 Science past-paper question from the 2023board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.