The Current in an Electron Beam in a Cathode-Ray Tube

question 34

Multiple Choice

The current in an electron beam in a cathode-ray tube is measured to be 70 µA.How many electrons hit the screen in 5.0 s? (e = 1.6 x 10^-19 C)

• A)2.2 x 10¹¹ electrons
• B)8.8 x 10¹³ electrons
• C)2.2 x 10¹⁵ electrons
• D)8.8 x 10¹⁸ electrons

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Definitions:

Pat-down Search

A physical search of a person's outer clothing to detect weapons or contraband, typically performed by law enforcement.

Warrant

An order authorizing a payment of money by another person to a third person. Also, an option to purchase a security. As a verb, the word means to defend; to guarantee; to enter into an obligation of warranty.

Equal Protection Clause

A provision in the Fourteenth Amendment of the U.S. Constitution prohibiting states from denying any person within its jurisdiction the equal protection of the laws.

Discriminate

To treat someone differently or less favorably on the basis of certain characteristics, such as race, age, or gender, often in a way that is unfair or illegal.