A Solid Sphere of Radius a Is Concentric with a Hollow

question 85

Multiple Choice

A solid sphere of radius a is concentric with a hollow sphere of radius b, where b > a. If the solid sphere has a charge +Q and the hollow sphere a charge of -Q, the electric field at radius r, where a < r < b, is which of the following, in terms of k = 4π₀) ^-1?

• A) kQ/r²
• B) 2kQ/r²
• C) kQ/a²
• D) kQ/b²
• E) kQ/b - a)²

Evaluate segment attractiveness based on predefined criteria.

Understand key concepts in global marketing and economic environments.

Distinguish between different trade policies and their impacts on international business.

Recognize the significance of infrastructure in global marketing strategies.

---

Definitions:

Oceans

Oceans are large bodies of salt water that cover approximately 71% of the Earth's surface, divided into five major basins: the Pacific, Atlantic, Indian, Southern, and Arctic Oceans.

Landscape

An area of land that is defined by its features, natural and human-made, visible from a particular location.

Geologic Hazards

Natural events or phenomena that might have a negative effect on life or property, which include earthquakes, landslides, and volcanic eruptions.

Active Fault

A fracture in Earth's crust along which there has been recent movement and which is likely to produce earthquakes.