The Diagram Shows One Plate of a Parallel-Plate Capacitor from Within

question 60

Multiple Choice

The diagram shows one plate of a parallel-plate capacitor from within the capacitor. The plate is circular and has radius R. The dashed circles are four integration paths have radii of r₁ = R/4, r₂ = R/2, r₃ =3 R/2, and r₄ = 2R. Rank the paths according to the magnitude of around the paths during the discharging of the capacitor, least to greatest.

• A) 1, 2 and 3 tie, then 4
• B) 1, 2, 3, 4
• C) 1, then 2 and 4 tie, then 3
• D) 4, 3, 1, 2
• E) all tie

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Definitions:

Economic Profits

Profits exceeding the opportunity costs of all resources employed, including both explicit and implicit costs, signifying above-normal returns.

Long Run

An economic term referring to a period in which all factors of production and costs are variable, allowing for full adjustment to changes in the market.

Price-taking

A market condition in which individual buyers or sellers have no influence over the market price of a product, commonly seen in perfectly competitive markets.

Perfectly Competitive Industry

A market structure characterized by many sellers offering identical products, where no single seller can influence the market price.