The Voltage Between the Cathode and the Screen of a Television

question 63

Multiple Choice

The voltage between the cathode and the screen of a television set is 22 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)2.8 × 10⁶ m/s
• C)6.2 × 10⁷ m/s
• D)7.7 × 10¹⁵ m/s
• E)5.3 × 10⁷ m/s

---

Definitions:

Summary Report

A report generated by a management information system that provides a consolidated picture of detailed data; these reports usually include some calculation or visual displays of information.

Transactions

In computing and database management, a transaction is a sequence of information exchange and work done in database systems that are treated as a single unit of work; it must either complete entirely or not at all.

MIS

Short for Management Information Systems, these are computerized databases of financial information organized and programmed in such a way that they produce regular reports on operations for every level of management in a company.

Data Mart

Small slices of a data warehouse grouped together and separated from the main body of data in the data warehouse so that related sets of data can be analyzed.