Two Infinite, Uniformly Charged, Flat Surfaces Are Mutually Perpendicular

question 48

Multiple Choice

Two infinite, uniformly charged, flat surfaces are mutually perpendicular. One of the sheets has a charge density of +60 pC/m², and the other carries a charge density of −80 pC/m². What is the magnitude of the electric field at any point not on either surface?

• A) 1.1 N/C
• B) 5.6 N/C
• C) 7.9 N/C
• D) 3.8 N/C
• E) 4.0 N/C

---

Definitions:

Industrial Lines

Division or categorization of the economy into segments based on the nature of the activities, such as manufacturing, services, and agriculture.

Labor Spies

Individuals hired by employers to infiltrate, monitor, or gather intelligence on labor unions and employee activities, often to counter organization efforts.

Auto and Steel Industries

Sectors of the economy known for their historical significance in American manufacturing and heavy unionization, often associated with large-scale industrial labor.

Intimidation

The act of deliberately making someone afraid in order to influence their behavior or decisions.