Three Long Wires Parallel to the X Axis Carry Currents

question 53

Multiple Choice

Three long wires parallel to the x axis carry currents as shown.If I = 20 A,what is the magnitude of the magnetic field at the origin?

• A)37 μT
• B)28 μT
• C)19 μT
• D)47 μT
• E)58 μT

Describe the role of an entrepreneur in the economy.

Understand the principle that there is no such thing as a free lunch.

Differentiate between the resource market and the product market.

Comprehend the necessity of opportunity costs due to the scarcity of resources.

---

Definitions:

Input

Resources (such as labor, materials, and capital) used in the production process to create goods or services.

Marginal Resource Cost

The additional cost incurred by a firm for using one more unit of input, like labor or raw materials.

Labor

The effort by workers to produce goods or services, typically measured in terms of hours worked or output produced.

Additional Unit

Refers to the next unit of a product or service to be produced or consumed, considered in analysis of costs and benefits.