In Large Televisions,electrons Are Accelerated from Rest by a Potential

question 44

Multiple Choice

In large televisions,electrons are accelerated from rest by a potential difference of 20 kV and shot onto a phosphorescent screen to produce an image.What is the speed of the electrons when they reach the screen?

• A)1.4 * 10⁶ m/s
• B)1.3 * 10⁷ m/s
• C)4.4 * 10⁷ m/s
• D)5.9 * 10⁷ m/s
• E)8.4 * 10⁷ m/s

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Definitions:

Catatonia

A psychological condition marked by abnormal movements and behaviors, including stupor, rigidity, or excessive, pointless activity.

Kinesthesis

The sense that informs us about the positions and motion of parts of our bodies.

Hypogeusia

A reduced ability to taste or detect flavors, which can be temporary or permanent.

Hyperphagia

An abnormal increase in appetite for food, often leading to excessive eating.