Two Parallel Circular Plates with Radius 7

question 26

Multiple Choice

Two parallel circular plates with radius 7.0 mm carrying equal-magnitude surface charge densities of ±3.0 μC/m² are separated by a distance of 1.0 mm.How much stored energy do the plates have?

• A)78 nJ
• B)25 nJ
• C)7.9 nJ
• D)250 nJ

Distinguish between different types of auctions and their roles in buying and selling processes.

Identify the components and functions of different online trading communities and platforms.

Understand the significance of buying situations that require changes in product specifications, price, delivery schedules, or suppliers.

Recognize the contribution of e-marketplaces to facilitating real-time exchanges of information, money, products, and services.

---

Definitions:

Earth's Rotation

The spinning of the Earth on its axis, which takes approximately 24 hours to complete, resulting in day and night.

Organisms

Any living biological entities, such as plants, animals, fungi, or microorganisms.

Internal Desynchronization

A state in which biological rhythms are not in phase with one another.

Time Zones

Regions of the Earth that have adopted the same standard time, usually differing from neighboring regions by an exact number of hours.