Use the Fact That the Resistance of a Wire Carrying

question 35

Multiple Choice

Use the fact that the resistance of a wire carrying an electrical current is directly proportional to its length and inversely proportional to its cross-sectional area. ​
A 10-foot piece of copper wire produces a resistance of 0.2 ohm.Use the constant of proportionality k = 0.000833 to find the diameter of the wire.
​
(Round the answer up to three decimal places. )
​

• A)0.23 ft
• B)0.58 ft
• C)0.38 ft
• D)0.48 ft
• E)0.73 ft

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Definitions:

Machine-Hours

A measure of production time, tracking how many hours machines are operating in the manufacturing process.

Predetermined Overhead Rate

This rate is calculated before the period begins and is used to apply manufacturing overhead costs to products based on a consistent formula.

Fixed Manufacturing Overhead

Costs in manufacturing that do not vary with the level of production, including factory rent, salaries of permanent staff, and equipment depreciation.

Machine-Hours

A measure of the amount of time machines are operated in the manufacturing process, used as a basis for allocating costs.