In figure shows a rectangular block with dimensions x , 2 x 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)

Options

A. A-A
B. B-B
C. C-C
D. Same for all three pairs

Answer

C