Given figure shows a rectangular block with dimensions x, 2 and 4 x. Electrical contacts can be m...

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Given figure shows a rectangular block with dimensions x, 2 and 4 x. Electrical contacts can be made to the block between opposite pairs of faces (for example, between the faces labelled A-A, B-B and C-C ). Between which two faces would the maximum electrical resistance be obtained (A-A :
Top and bottom faces, B-B : Left and right faces, C-C :
Front and rear faces)
(a) A-A
(b) B-B
(c) C-C
(d) Same for all three pairs

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