
College Physics
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ISBN: 9781305952300
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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Transcribed Image Text:1.
Wire C and wire D are made from different materials and have length Lc = Lp = 1.0 m.
The resistivity and diameter of wire C are 2.0 x 10-6 N·m and 1.00 mm, and those of wire D are
1.0 x 10-6 N· m and 0.50 mm. The wires are joined as shown in the Figure 1, and a current of 2.0 A
is set up in them.
C
D
- Lc-
-Lp
2
3
Figure 1
(a) What is the electric potential difference between points 1 and 2?
(b) What is the electric potential difference between points 2 and 3?
(c) What is the rate at which energy is dissipated between points 1 and 2?
(d) What is the rate at which energy is dissipated between points 2 and 3?
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