Question: In the opposite figure :The radius of the coil 8cm and radius of the wire 2mm The resistivity is (a) 1.710 -5 (b) 1.710 8

In the opposite figure :The radius of the coil 8cm and radius of the wire 2mm

In the opposite figure :The radius of the coil 8cm and radius

The resistivity is

(a) 1.7×10-5

(b) 1.7×108

(c) 4×105

(d) 8×106

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