An Electron Moves in a Region Where the Magnetic Field

question 71

Multiple Choice

An electron moves in a region where the magnetic field is uniform, has a magnitude of 60 μT, and points in the positive x direction. At t = 0 the electron has a velocity that has an x component of 30 km/s, a y component of 40 km/s, and a z component of zero. What is the radius of the resulting helical path?

• A) 4.7 mm
• B) 18 mm
• C) 3.8 mm
• D) 2.8 mm
• E) 5.7 mm

---

Definitions:

Accounts Payable Turnover Ratio

A financial metric that measures how quickly a business pays its suppliers; calculated as cost of goods sold divided by average accounts payable.

Vendors

Entities or individuals that supply goods or services to another company, often playing a crucial role in the supply chain.

Timely Manner

Completing or achieving something within the expected or allocated time.

Compounded Semiannually

An interest calculation method where interest is added to the principal amount twice a year, leading to interest on interest by the period's end.