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The figure shows a tetrahedron, each side of which has a resistance $r$ Choose the correct statement $(s)$ related to the resistance between any two points.
  • A$R_{AB} = R_{BD} = R_{BC} = R_{CD} = R_{CA} = R_{AD}$
  • B$R_{AB} = R_{AC} = R_{AD} = R_{BD} = R_{BC} \ne R_{CD}$
  • C$R_{AB} = R_{AC} = R_{BC}$ and $R_{CD} = R_{AD} = R_{BD}$
  • DBoth $(A)$ and $(C)$
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