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A balanced Wheatstone bridge is given in the figure, where the resistances are given as R E 5.0 2 and R, = 7.5 0.

 

A balanced Wheatstone bridge is given in the figure, where the resistances are given as R E 5.0 2 and R, = 7.5 0. Between the points A and B, a 1.0 m-long wire with the cross-sectional area of 3.2 X 109 m, is tightly connected. If the resistance between A and C is Rac 7.0 , find the resistivity, in un. cm, of the wire. Rx k E 4 C Rs W 12 - B

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