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SSM Wires A and B, having equal lengths of 40.0 m and equal diameters of 2.60 mm, are connected in series. A potential difference of 60.0 V is applied between the ends of the composite wire The resistances are RA = 0.127 Ω and RB = 0.729 Ω. For wire A, what are (a) magnitude J of the current density and (b) potential difference V? (c) Of what type material is wire A made (see Table 26-1)? For Wire B, what are (d) J and (e) V? (f) Of what type material is B made?
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