Four identical rods of same material are joined end to end to form a square. If the temperature difference between the ends of a diagonal is ${100^o}C$, then the temperature difference between the ends of other diagonal will be ........ $^oC$

  • A

    $0$

  • B

    $\frac{{100}}{l}$

  • C

    $\frac{{100}}{{2l}}$

  • D

    $100$

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