A High Voltage Is Applied Across a Sealed Vessel Containing

question 35

Essay

A high voltage is applied across a sealed vessel containing gas at a very low pressure. If the voltage is high enough, electrons are stripped off the neutral atoms of gas (ionization), forming a current through the vessel. Some electrons recombine with positively charged ions, thereby giving off electromagnetic radiation, while other electrons cause further ionization of neutral atoms. Describe what happens to the pressure inside the vessel when the ionizing voltage is applied.

---

Definitions:

Informative Presentations

Speeches or presentations aimed at educating the audience about a specific topic or subject matter.

Persuasive Presentations

Presentations designed to convince or influence the audience to accept a certain viewpoint, idea, or course of action through compelling argumentation and evidence.

Attention-gaining Techniques

Strategies or methods used to capture the audience's interest or focus at the beginning of a communication piece.

Introduction

The initial section of a speech, paper, or presentation designed to capture the audience's attention and explain the main topic or purpose.