From the course: Electronics Foundations: Fundamentals
Join today to access over 23,200 courses taught by industry experts.
Challenge: Power a light bulb
From the course: Electronics Foundations: Fundamentals
Challenge: Power a light bulb
(upbeat music) - [Instructor] It's time for another challenge. This time, I want you to figure out a combination of batteries in series and/or parallel to provide power for this little motor, which I've attached to a wheel to give my lazy hamster a workout. This particular motor requires a supply of six volts to operate. And based on my hamster's weight and laziness, I estimate that it will require 150 milliamps of current to keep him running at a healthy speed. Finally, I want to make sure he gets plenty of exercise before I need to change the batteries, so it should be able to run for at least two days, which is 48 hours, on a single set of batteries. To limit the scope of this challenge, you have five types of common household alkaline batteries to choose from, nine-volt, AA, AAA, C, and D cell. These five types of batteries have the nominal voltages, capacities, and typical drain currents listed in this chart. And you…
Practice while you learn with exercise files
Download the files the instructor uses to teach the course. Follow along and learn by watching, listening and practicing.
Download courses and learn on the go
Watch courses on your mobile device without an internet connection. Download courses using your iOS or Android LinkedIn Learning app.