An Electron Is Projected with an Initial Velocity V₀ = $10^7$

question 82

Multiple Choice

An electron is projected with an initial velocity v₀ = 8.4 × $10^7$ m/s along the y-axis, which is the centerline between a pair of charged plates, as shown in the figure. The plates are 1.0 m long and are separated by 0.10 m. A uniform electric field of magnitude E in the +x-direction is present between the plates. If the magnitude of the acceleration of the electron is measured to be $8.9 \times 10 ^ { 15 } \mathrm {~m} / \mathrm { s } ^ { 2 }$ what is the magnitude of the electric field between the plates? (e = 1.6 × 10^-19 C, m_electron = 9.11 × 10^-31 kg)

• A) 51,000 N/C
• B) 45,000 N/C
• C) 40,000 N/C
• D) 35,000 N/C
• E) 29,000 N/C

---

Definitions:

Hidden Curriculum

The unwritten, informal, and often unintended lessons, values, and perspectives that students learn in school.

Self-Fulfilling Prophecy

A belief or expectation that an individual or group holds, consciously or subconsciously, that manifests because it is believed.

Class Consciousness

Awareness of one's social class and its implications, often associated with a sense of collective interests and the struggle between different classes, particularly in Marxist theory.

Educational Capital

Refers to the accumulation of knowledge, skills, and qualifications that an individual obtains through their education, which can influence their social and economic opportunities.