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A Very Long Straight Wire Carries a 12-A Current Eastward

question 15

Multiple Choice

A very long straight wire carries a 12-A current eastward and a second very long straight wire carries a 14-A current westward. The wires are parallel to each other and are 42 cm apart. Calculate the force on a 6.4 m length of one of the wires. (μ0 = 4π × 10-7 T ∙ m/A)


Definitions:

Break-Even Point

The production level or sales volume at which total revenues equal total costs, resulting in neither profit nor loss.

Margin of Safety

The difference between actual sales and the break-even point, indicating the level of risk in not covering fixed costs.

Composite Units

A measure used in costing to represent a bundle or mix of goods or services treated as a single unit.

Break-Even Point

The financial state in which total costs equal total revenues, resulting in neither profit nor loss.

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