The Voltage Between the Cathode and the Screen of a Computer

question 76

Multiple Choice

The voltage between the cathode and the screen of a computer monitor is 12 kV.If we assume a speed of zero for an electron as it leaves the cathode,what is its speed just before it hits the screen?

• A)8.8 × 10⁷ m/s
• B)6.5 × 10⁷ m/s
• C)4.2 × 10¹⁵ m/s
• D)7.7 × 10¹⁵ m/s
• E)5.3 × 10⁷ m/s

---

Definitions:

Floating Exchange Rates

A system in which currency values are allowed to fluctuate according to foreign exchange market mechanisms without direct intervention by the country’s government.

Interest Rates

The cost of borrowing money, typically expressed as a percentage of the amount loaned, which lenders charge borrowers.

Demand For Pounds

The desire or need for a given amount of a commodity, such as currency or weight, by consumers or businesses.

Appreciate

To increase in value or price over time.