An Electron Moving Perpendicular to a Magnetic Field of 2

question 13

Multiple Choice

An electron moving perpendicular to a magnetic field of 2.2 × 10^-2 T moves in a circle of certain radius. If the electron is moving with a speed of 1.5 × 10⁷ m/s, what is the radius of the circle?

• A) 1.5 × 10^-3 m
• B) 2.2 × 10^-4 m
• C) 2.2 × 10^-3m
• D) 3.9 × 10^-4 m
• E) 3.9 × 10^-3 m

---

Definitions:

Net Income

The total profit of a company after all expenses and taxes have been deducted from revenues.

Owner's Equity

The residual interest in the assets of an entity after deducting liabilities, representing the owner's claim on the business assets.

Falling Prices

A situation where the general level of prices of goods and services in an economy is decreasing over time.

Balance Sheet

A financial statement that lists assets, liabilities, and equity of a company at a specific point in time, showing its financial position.