If the wire is heated to 34.0°C while the 7.00-V potential difference is maintained, what is the resulting current in the wire?
If the wire is heated to 34.0°C while the 7.00-V potential difference is maintained, what is the resulting current in the wire?
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determine the current in the wire. (Use the values in the following table.)
If the wire is heated to 34.0°C while the 7.00-V potential difference is maintained, what is the resulting current in the wire?
![### Problem Statement
(a) A 34.7-m length of copper wire at 20.0°C has a radius of 0.31 mm. If a potential difference of 7.00 V is applied across the length of the wire, determine the current in the wire. (Use the values in the following table.)
### Table: Electrical Properties of Materials
| Material | Resistivity (Ω·m) | Temperature Coefficient of Resistivity α [(°C)⁻¹] |
|---------------|-------------------|-------------------------------------------------|
| Silver | 1.59 × 10⁻⁸ | 3.8 × 10⁻³ |
| Copper | 1.7 × 10⁻⁸ | 3.9 × 10⁻³ |
| Gold | 2.44 × 10⁻⁸ | 3.4 × 10⁻³ |
| Aluminum | 2.82 × 10⁻⁸ | 3.9 × 10⁻³ |
| Tungsten | 5.6 × 10⁻⁸ | 4.5 × 10⁻³ |
| Iron | 10.0 × 10⁻⁸ | 5.0 × 10⁻³ |
| Platinum | 11 × 10⁻⁸ | 3.92 × 10⁻³ |
| Lead | 22 × 10⁻⁸ | 3.9 × 10⁻³ |
| Nichrome (c) | 1.00 × 10⁻⁶ | 0.4 × 10⁻³ |
| Carbon | 3.5 × 10⁻⁵ | −0.5 × 10⁻³ |
| Germanium | 0.46 | −48 × 10⁻³ |
| Silicon (d) | 2.3 × 10³ | −75 × 10⁻³ |
| Glass | 10¹⁰–10¹⁴ | |
| Hard rubber | ≈10¹³ | |
| Sulfur | 10¹⁵ | |
| Quartz (](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F80172120-2709-4213-9fff-d391233fdef9%2Fe8cd2f7e-bf73-467d-8e1f-00666bf6d7e9%2F8r0zgx_processed.jpeg&w=3840&q=75)
Transcribed Image Text:### Problem Statement
(a) A 34.7-m length of copper wire at 20.0°C has a radius of 0.31 mm. If a potential difference of 7.00 V is applied across the length of the wire, determine the current in the wire. (Use the values in the following table.)
### Table: Electrical Properties of Materials
| Material | Resistivity (Ω·m) | Temperature Coefficient of Resistivity α [(°C)⁻¹] |
|---------------|-------------------|-------------------------------------------------|
| Silver | 1.59 × 10⁻⁸ | 3.8 × 10⁻³ |
| Copper | 1.7 × 10⁻⁸ | 3.9 × 10⁻³ |
| Gold | 2.44 × 10⁻⁸ | 3.4 × 10⁻³ |
| Aluminum | 2.82 × 10⁻⁸ | 3.9 × 10⁻³ |
| Tungsten | 5.6 × 10⁻⁸ | 4.5 × 10⁻³ |
| Iron | 10.0 × 10⁻⁸ | 5.0 × 10⁻³ |
| Platinum | 11 × 10⁻⁸ | 3.92 × 10⁻³ |
| Lead | 22 × 10⁻⁸ | 3.9 × 10⁻³ |
| Nichrome (c) | 1.00 × 10⁻⁶ | 0.4 × 10⁻³ |
| Carbon | 3.5 × 10⁻⁵ | −0.5 × 10⁻³ |
| Germanium | 0.46 | −48 × 10⁻³ |
| Silicon (d) | 2.3 × 10³ | −75 × 10⁻³ |
| Glass | 10¹⁰–10¹⁴ | |
| Hard rubber | ≈10¹³ | |
| Sulfur | 10¹⁵ | |
| Quartz (
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