JEE Main & Advanced JEE Main Paper Phase-I (Held on 07-1-2020 Evening)

  • question_answer
    The figure gives experimentally measured B vs. H variation in a ferromagnetic material. The retentivity, co-ercivity and saturation, respectively, of the material are [JEE MAIN Held on 07-01-2020 Evening]

    A) 1.0 T, 50 A/m and 1.5 T

    B) 1.5 T, 50 A/m and 1.0 T

    C) 1.5 T, 50 A/m and 1.0 T

    D) 150 A/m, 1.0 T and 1.5 T

    Correct Answer: A

    Solution :

    [a] Theoretical The values can be directly taken from the graph.

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