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  1. kshitij

    Challenge May Physics Challenge

    There were lots of mistakes in my answer, hopefully its now corrected
  2. kshitij

    Challenge May Physics Challenge

    Problem 6 From symmetricity, the total magnetic field at ##x## due to the loop should 4 times the magnetic field at ##x## due to each side times the . {see figure} magnetic field due to straight wire of finite length is, $$B=\frac {\mu_oI[\sin\alpha+\sin\beta]} {4\pi r}$$ here...
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