An Electron in a TV Picture Tube Is Accelerated Through

question 52

Multiple Choice

An electron in a TV picture tube is accelerated through a potential difference of 20 kV before it hits the screen. What is the kinetic energy of the electron in electron volts? (1 eV = 1.6 * 10 ^{- 19} J)

• A) 6.25 * 10²² eV
• B) 1.0 *10⁴ eV
• C) 2.0 * 10⁴ eV
• D) 3.2*10 ^{- 22} eV

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Definitions:

Marginal Cost

The additional expense incurred from producing one more unit of a good or service.

Standardized

Made uniform in form or character, often to enable comparability across different contexts or systems.

Perfectly Competitive

A market structure characterized by many buyers and sellers, free entry and exit, and a homogenous product, leading to no single consumer or producer having market power.

Short Run

A period in economics where at least one factor of production is fixed, and firms can't adjust all inputs.