Two Isolated Copper Plates, Each of Area $0.40 \mathrm {~m} ^ { 2 }$

question 80

Multiple Choice

Two isolated copper plates, each of area $0.40 \mathrm {~m} ^ { 2 }$ , carry opposite charges of magnitude $7.08 \times 10 ^ { - 10 }$ C. They are placed opposite each other in parallel alignment, with a spacing of $4.0 \mathrm {~cm}$ between them. What is the potential difference between the plates? $\left( \varepsilon _ { 0 } = 8.85 \times 10 ^ { - 12 } \mathrm { C } ^ { 2 } / \mathrm { N } \cdot \mathrm { m } ^ { 2 } \right)$

• A) \(3.2 \mathrm {~V}\)
• B) \(0.40 \mathrm {~V}\)
• C) \(7.6 \mathrm {~V}\)
• D) \(3.0 \mathrm {~V}\)
• E) \(8.0 \mathrm {~V}\)

---

Definitions:

Ultimate Explanation

Refers to the deepest level of understanding for the reasons behind phenomena, often seeking to explain why things are the way they are in a broad, fundamental way.

Migration

The seasonal or periodic movement of animals from one region or habitat to another, often in search of food, breeding sites, or more favorable climates.

Circadian Rhythm

An internal process that regulates the sleep-wake cycle and repeats roughly every 24 hours.

Turgor Pressure

The pressure of water inside plant cells against the cell wall, which maintains cell rigidity and plant structure.