Two Square Air-Filled Parallel Plates That Are Initially Uncharged Are

question 28

Multiple Choice

Two square air-filled parallel plates that are initially uncharged are separated by 1.2 mm, and each of them has an area of 190 mm². How much charge must be transferred from one plate to the other if 1.1 nJ of energy are to be stored in the plates? (ε₀₀ = 8.85 × 10^-12 C²/N ∙ m²)

• A) 56 pC
• B) 39 pC
• C) 78 pC
• D) 3.5 µC

---

Definitions:

Predatory Pricing

A strategy where a business sets very low prices with the intent to drive competitors out of the market or discourage new entries.

Market Prices

The current price at which goods or services can be bought or sold in the marketplace, influenced by supply and demand dynamics.

Differing Prices

The variation in pricing for goods or services in different markets, customer segments, or purchase situations.

Total Cost Curve

A graphical representation that shows the total cost of producing different quantities of a good or service, including both fixed and variable costs.