An Electron Is Fired Through the Space Between Two Oppositely

question 17

Multiple Choice

An electron is fired through the space between two oppositely charged, parallel plates. The plates form a 2.00 cm long region with an electric field of 4000 N/C perpendicular to the electron's initial velocity. What is the change in velocity of the electron after it passes through the plates?

• A) 2.0 × 10⁷ m/s
• B) 7.1 × 10⁶ m/s
• C) 2.8 × 10⁶ m/s
• D) 1.4 × 10⁶ m/s
• E) 6.5 × 10⁴ m/s

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Definitions:

Net Income

represents the total earnings of a company after deducting all expenses and taxes from total revenue.

Return on Investment

The gain or loss generated on an investment relative to the amount of money invested.

Selling Margin

The difference between the cost of a product and its selling price, indicating the profit made on the sale.

Net Income

The total profit of a company after all expenses, taxes, and costs have been subtracted from total revenue.