The Diagrams Show Three Circuits Consisting of Concentric Circular Arcs

question 27

Multiple Choice

The diagrams show three circuits consisting of concentric circular arcs (either half or quarter circles of radii r, 2r, and 3r) and radial lengths. The circuits carry the same current. Rank them according to the magnitudes of the magnetic fields they produce at C, least to greatest.

• A) 1, 2, 3
• B) 3, 2, 1
• C) 1, 3, 2
• D) 2, 3, 1
• E) 2, 1, 3

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Definitions:

Accounting Basis

The method used to record the financial transactions of a business (e.g., cash basis, accrual basis).

Pay Back

The period of time it takes for an investment to generate enough returns to recover the original investment cost.

Fixed Costs

Expenses that do not vary with the level of production or sales, such as rent or salaries.

Accounting Break-even

The point at which a company's total revenues exactly match its total expenses, indicating no net profit or loss from operations.