Voltmeters, Ammeters, and Terminal Voltage in General Physics - Lesson 17.3

Learn about voltmeters, ammeters, and terminal voltage in this 11-minute physics lesson. Discover how voltmeters measure potential difference across resistors in parallel, with ideal voltmeters having infinite resistance. Explore ammeters and their role in measuring electric current through resistors in series, with ideal ammeters having zero resistance. Understand the concept of internal resistance in batteries and its impact on terminal voltage, resulting in a lower voltage than the battery's electromotive force (emf). Gain insights into these fundamental electrical measurement tools and concepts to enhance your understanding of circuit analysis and electrical systems.