About the video
This lesson explores the process by which batteries generate constant DC voltage through chemical reactions. It covers the history and types of batteries, including alkaline, lead-acid, and lithium-ion batteries. You’ll learn about the components of a battery, such as electrodes, electrolytes, and separators, and how they work together to produce a voltage differential. The video explains the importance of batteries in various applications, from everyday devices to critical infrastructure, and highlights the advantages and limitations of different battery chemistries. To get started, go to the Lesson Content tab and click on the video.
About the quiz
Each lesson contains a video, and is followed up with a simple quiz. Quizzes review information discussed within the video, with each question providing an answer justification. Helping to reinforce correct answers and helps clarify any mistakes through code citations, excerpts, and explanations, so you can better understand the material.
Charges
Charges are rewards you earn for engaging in our learning system. You receive charges for completing both the video and the quiz in each lesson. The amount of charges available for each lesson is displayed in the “Lesson Features” box on the right. The charges you earn are based on the time it takes you to complete the lesson, which is also indicated in “Lesson Features.”
