An Electron Is Accelerated from Rest Through a Potential Difference

question 118

Multiple Choice

An electron is accelerated from rest through a potential difference of 3.75 kV.It enters a region where a uniform 4.0-mT magnetic field is perpendicular to the velocity of the electron.Calculate the radius of the path this electron will follow in the magnetic field.(e = 1.60 × 10^-19 C,m_electron = 9.11 × 10^-31 kg)

• A)1.2 cm
• B)2.2 cm
• C)3.2 cm
• D)4.2 cm
• E)5.2 cm

---

Definitions:

Social Cognitive Theory

A theory by Albert Bandura that emphasizes the importance of observing, modeling, and imitating the behaviors, attitudes, and emotional reactions of others.

Albert Bandura

A renowned psychologist best known for his social learning theory, emphasizing the role of observational learning, imitation, and modeling in behavior.

Evolutionary Psychology

A theoretical approach in psychology that attempts to explain mental and psychological traits—such as memory, perception, or language—as adaptations, i.e., as the functional products of natural selection.

David Buss

An evolutionary psychologist known for his research on mate selection, strategies of human mating, and evolutionary explanations for sexual behaviors and gender differences.