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A 20 Meter Long Aluminum Wire (R = 0 α\alpha = 429 × 10-3C-1) Is Connected in Series to an 8

Question 53

Multiple Choice

A 2.0 meter long Aluminum wire (R = 0.44m  A 2.0 meter long Aluminum wire (R = 0.44m  <sup> </sup>P= 2.82 × 10<sup>-8</sup>  -m,  \alpha = 4.29 × 10<sup>-3</sup>C<sup>-1</sup>)  is connected in series to an 8.0 meter long Tungsten wire (R = 0.20m  <sup> </sup>P= 5.6 × 10<sup>-8</sup>  -m, \alpha  = 4.5 × 10<sup>-3</sup>C<sup>-1</sup>) . What is the resistance of the combination if the wire is heated to 150.° C? Assume the initial temperature for both wires is room temperature (20°C)  A)  0.78 m  B)  0.69 m  C)  0.88 m  D)  1.00 m  E)  0.64 m  P= 2.82 × 10-8 11eea3e1_9524_0969_97f4_7b1899809f65_TB9720_11-m, α\alpha = 4.29 × 10-3C-1) is connected in series to an 8.0 meter long Tungsten wire (R = 0.20m 11eea3e1_dfc9_619a_97f4_13087e0a6d77_TB9720_11 P= 5.6 × 10-8 11eea3e1_dfc9_619a_97f4_13087e0a6d77_TB9720_11-m, α\alpha = 4.5 × 10-3C-1) . What is the resistance of the combination if the wire is heated to 150.° C? Assume the initial temperature for both wires is room temperature (20°C)


A) 0.78 m11eea3e1_dfc9_619a_97f4_13087e0a6d77_TB9720_11
B) 0.69 m11eea3e1_dfc9_619a_97f4_13087e0a6d77_TB9720_11
C) 0.88 m11eea3e1_dfc9_619a_97f4_13087e0a6d77_TB9720_11
D) 1.00 m11eea3e1_dfc9_619a_97f4_13087e0a6d77_TB9720_11
E) 0.64 m11eea3e1_dfc9_619a_97f4_13087e0a6d77_TB9720_11

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