Find Temperature difference between $B$ and $C$ ? (All rods are identical)

820-100

  • A

    $\frac{{600}}{{13}}\ ^oC$

  • B

    $\frac{{500}}{{7}}\ ^oC$

  • C

    $\frac{{400}}{{13}}\ ^oC$

  • D

    $\frac{{700}}{{6}}\ ^oC$

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