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Properties of magnetic field lines

This type of question, asked 5 times: 2022, 2023, 2024, 2025, 2026. All 7 questions below, oldest first.

Try each one first, then open its answer.

  1. Question 1

    2022

    2 OR
    “Magnetic field is a physical quantity that has both direction and magnitude.” How can this statement be proved with the help of magnetic field lines of a bar magnet ?

  2. Question 2

    2023

    Two statements are given, one labelled Assertion (A) and the other labelled Reason (R). Select the correct answer from the options given below.
    20
    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.

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  3. Question 3

    2023

    Two statements are given, one labelled Assertion (A) and the other labelled Reason (R). Select the correct answer from the options given below.
    19
    Assertion (A) : The 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.

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  4. Question 4

    2024

    26
    (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.

  5. Question 5

    2025

    26
    What are magnetic field lines. List two important properties of magnetic field lines.

  6. Question 6

    2025

    14
    Which one of the following statements is not true about a bar magnet ?

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  7. Question 7

    2026

    39 (A)
    (i) Draw a diagram showing the magnetic field lines around a bar magnet. Write any two characteristics of magnetic field lines. (ii) Write the statement of Right hand thumb rule. (iii) The concentric circles representing the magnetic field around a current carrying straight wire become larger and larger as we move away from the wire. How does magnetic field change on these concentric circles ?