Current Electricity and Electrical InstrumentHard

Question

Find the resistance of a wire frame shaped as a cube (figure) when measured between points 1-7 

Options

A.5/3 R
B.5/6 R
C.3/5 R
D.6/5 R

Solution


due to input output symmetry potential at point 2, 4, 5, are equal and potential at point 3, 6, 8 are equal

Req = R

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