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:

Temporal Lobe

A region of the brain involved in processing auditory information and encoding memory.

Working Memory

A cognitive system responsible for temporarily holding information available for processing, important for reasoning and the guidance of decision-making and behavior.

Central Executive

The process that coordinates rehearsal systems and retrieves memory from and transfers information to permanent memory.

Phonological Loop

A component of the working memory model that deals with the storage and manipulation of verbal and auditory information.