A silver wire has resistivityp = 1.20 x 10-8 2-m and a cross-sectional area of 5.30 mm2. The current in the wire is uniform and changing at the rate of 2350 A/s when the current is 140 A. (a) What is the magnitude of the (uniform) electric field in the wire when the current in the wire is 140 A? (b) What is the displacement current in the wire at that time? (c) What is the ratio of the magnitude of the magnetic field due to the displacement current to that due to the current at a distancer from the wire?

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**Problem Statement:**

A silver wire has a resistivity \( \rho = 1.20 \times 10^{-8} \, \Omega \cdot \text{m} \) and a cross-sectional area of 5.30 mm\(^2\). The current in the wire is uniform and changing at the rate of 2350 A/s when the current is 140 A. 

**Questions:**

(a) What is the magnitude of the (uniform) electric field in the wire when the current in the wire is 140 A?

(b) What is the displacement current in the wire at that time?

(c) What is the ratio of the magnitude of the magnetic field due to the displacement current to that due to the current at a distance \( r \) from the wire?

**Response Fields:**

- For part (a): 
  - **Number:** [Input field]
  - **Units:** [Dropdown menu]

- For part (b):
  - **Number:** [Input field]
  - **Units:** [Dropdown menu]

- For part (c):
  - **Number:** [Input field]
  - **Units:** [Dropdown menu]
Transcribed Image Text:**Problem Statement:** A silver wire has a resistivity \( \rho = 1.20 \times 10^{-8} \, \Omega \cdot \text{m} \) and a cross-sectional area of 5.30 mm\(^2\). The current in the wire is uniform and changing at the rate of 2350 A/s when the current is 140 A. **Questions:** (a) What is the magnitude of the (uniform) electric field in the wire when the current in the wire is 140 A? (b) What is the displacement current in the wire at that time? (c) What is the ratio of the magnitude of the magnetic field due to the displacement current to that due to the current at a distance \( r \) from the wire? **Response Fields:** - For part (a): - **Number:** [Input field] - **Units:** [Dropdown menu] - For part (b): - **Number:** [Input field] - **Units:** [Dropdown menu] - For part (c): - **Number:** [Input field] - **Units:** [Dropdown menu]
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