A Narrow Copper Wire of Length L and Radius B

question 6

Multiple Choice

A narrow copper wire of length L and radius b is attached to a wide copper wire of length L and radius 2b,forming one long wire of length 2L.This long wire is attached to a battery,and a current is flowing through it.If the electric field in the narrow wire is E,the electric field in the wide wire is

• A) E.
• B) 2E.
• C) 4E.
• D) E/2.
• E) E/4.

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Definitions:

Manufacturing Margin

The difference between the cost of goods sold by a manufacturing company and its total sales, reflecting the gross margin specific to manufacturing operations.

Absorption Costing

A costing method that includes all manufacturing costs—direct materials, direct labor, and both variable and fixed manufacturing overhead—in the cost of goods sold.

Variable Costing

An accounting method that includes only variable production costs (direct materials, direct labor, and variable manufacturing overhead) in product costs, excluding fixed overhead.

Units Manufactured

The total quantity of products completed and ready for sale or use at the end of an accounting period.