Wire C and wire D are made from different materials and have length LC = LD = 1.0 m. The resistivity and diameter of wire C are 2.0 x 10-6 惟 路 m and 1.00 mm, and those of wire D are 1.0 x 10 -6 惟 路 m and 0.50 mm. The wires are joined as shown in Fig. 26-35, and a current of 2.0 A is set up in them. What is the electric potential difference between (a) points 1 and 2 and (b) points 2 and 3? What is the rate at which energy is dissipated between (c) points 1 and 2 and (d) points} and 3?
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