Notes are being written
The board questions below are real and complete — they come from the CBSE papers themselves. The written notes for this topic are still being prepared.
Board questions on this topic
8 from the CBSE papers we hold — the exact wording the board used.
2026Assertion-Reason·1 mark·Q32
Assertion (A): With the help of compass, magnetic field lines can be traced outside the bar magnet. Reason (R): The north pole of a compass needle always points towards the south pole of the magnet when brought close to it.
- (a) Both Assertion
- (b) and Reason (R) are true and Reason (R) is the correct explanation of the Assertion (A).
- (c) Both Assertion
- (d) and Reason (R) are true, but Reason (R) is not the correct explanation of the Assertion (A).
- (e) Assertion
- (f) is true, but Reason (R) is false.
- (g) Assertion
- (h) is false, but Reason (R) is true.
2025Assertion-Reason·1 mark·Q19
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. Select the correct answer:
- (a) Both A and R are true and R is the correct explanation of A.
- (b) Both A and R are true, but R is not the correct explanation of A.
- (c) A is true, but R is false.
- (d) A is false, but R is true.
2024Very short answer·2 marks·Q26
(i) Two magnetic field lines do not intersect each other. Why? (ii) How is a uniform magnetic field in a given region represented? Draw a diagram in support of your answer.
2023Short answer·3 marks·Q32(b)
(i) Draw the pattern of magnetic field lines of (1) a current carrying solenoid (2) a bar magnet. (ii) List two distinguishing features between the two fields.
2022Case based·1 mark·Q15(a)
A girl student fixes a white paper sheet on a drawing board using a sticky material. She places a bar magnet at its centre and, using a salt-sprinkler, uniformly sprinkles some iron filings around the bar magnet. On tapping the board gently she observes that the iron filings have arranged themselves in a particular pattern. Draw a diagram to represent this pattern of iron filings.
2022Case based·1 mark·Q15(b)
Iron filings sprinkled around a bar magnet on a tapped drawing board arrange into a pattern. Draw the magnetic field lines of a bar magnet. Show on it the poles of the bar magnet and the direction of the magnetic field lines.
2022Case based·2 marks·Q15(c)(i)
Iron filings sprinkled around a bar magnet on a tapped drawing board arrange into a pattern. How is the direction of the magnetic field at a point determined using field lines? Why do two magnetic field lines not intersect each other?
2022Case based·2 marks·Q15(c)(ii)
Iron filings sprinkled around a bar magnet on a tapped drawing board arrange into a pattern. How are the magnetic field lines of a bar magnet drawn using a small compass? Draw one magnetic field line on each side of the magnet.