A Length of Wire Has a Resistance of 18

question 67

Multiple Choice

A length of wire has a resistance of 18.0 Ω. When the wire is uniformly stretched (i.e., the total volume of the wire is unchanged during the stretching) to triple it original length, what resistance results?

• A) 162 Ω
• B) 54.0 Ω
• C) 18.0 Ω
• D) 6.00 Ω
• E) 2.00 Ω

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Definitions:

Times Interest Earned Ratio

A financial metric used to evaluate a company's ability to meet its debt obligations by comparing its income before interest and taxes to its interest expenses.

Operating Costs

Operating costs are the expenses associated with the day-to-day operations of a business, including costs for rent, utilities, payroll, and raw materials.

Profit Margin

A financial ratio indicating the percentage of revenue that exceeds the costs of goods sold, showcasing the profitability of a company.

Return On Equity

A measure of a corporation's profitability that calculates how much profit a company generates with the money shareholders have invested.