**Study of Temperature Effects on Electrical Resistance in Aluminum Wire**An engineering intern is researching how temperature affects the resistance of a wire carrying current. Initially, the intern applied a specific voltage to an aluminum wire at a temperature of 54.0°C, which resulted in a current of 1.40 A. The inquiry then explores what current would be observed if the same voltage is applied to the same wire, but at a much lower temperature of -88.0°C.**Parameters:**- **Current at 54.0°C:** 1.40 A- **Reference Temperature:** 20°C- **Temperature Coefficient of Resistivity for Aluminum:** 3.90 x 10⁻³ (°C)⁻¹The intern is tasked with calculating the expected current at the altered temperature of -88.0°C.---This study aids in understanding how resistive properties in materials like aluminum change with temperature, which is critical in designing electrical systems for environments with varying temperatures.

Consider the first case, initial temperature, T = 20 oC Final temperature, T1 = 54 oC Change in…

An engineering intern is studying the effect of temperature on the resistance of a current carrying wire. She applies a voltage to a aluminum wire at a temperature of 54.0°C and notes that it produces a current of 1.40 A. If she then applies the same voltage to the same wire at -88.0°C, what current should she expect (in A)? The temperature coefficient of resistivity for aluminum is 3.90 x 10-3 (°C)-¹. (Assume that the reference temperature is 20°C.)

An engineering intern is studying the effect of temperature on the resistance of a current carrying wire. She applies a voltage to a aluminum wire at a temperature of 54.0°C and notes that it produces a current of 1.40 A. If she then applies the same voltage to the same wire at -88.0°C, what current should she expect (in A)? The temperature coefficient of resistivity for aluminum is 3.90 x 10-3 (°C)-¹. (Assume that the reference temperature is 20°C.)

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Concept explainers

Microscopic view of current

In physics, the term current is expressed as the rate of flow of electric charges across the area per unit time (I=q/t). It propagates along in the direction of the motion of positive charges. When the current is caused by the motion of electrons, the direction of the current is opposite to the flow.

Question

**Study of Temperature Effects on Electrical Resistance in Aluminum Wire**

An engineering intern is researching how temperature affects the resistance of a wire carrying current. Initially, the intern applied a specific voltage to an aluminum wire at a temperature of 54.0°C, which resulted in a current of 1.40 A. The inquiry then explores what current would be observed if the same voltage is applied to the same wire, but at a much lower temperature of -88.0°C.

**Parameters:**
- **Current at 54.0°C:** 1.40 A
- **Reference Temperature:** 20°C
- **Temperature Coefficient of Resistivity for Aluminum:** 3.90 x 10⁻³ (°C)⁻¹

The intern is tasked with calculating the expected current at the altered temperature of -88.0°C.

---

This study aids in understanding how resistive properties in materials like aluminum change with temperature, which is critical in designing electrical systems for environments with varying temperatures.

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