Tag Archives: Experiment

Are Expensive Batteries Worth the Extra Cost?

A very thorough analysis of the power vs cost relationship for common batteries. http://www.wired.com/2012/01/are-expensive-batteries-worth-the-extra-cost/

Posted in Data Logging, How do electric circuits work?, Unit 1 | Tagged , , , | Leave a comment

A dozen USB chargers in the lab….

Just when you thought that a charger is a charger – be careful what you plug into an expensive device. http://www.righto.com/2012/10/a-dozen-usb-chargers-in-lab-apple-is.html (This has a lot of relevance to students studying the Further Electronics detailed study

Posted in How can AC electricity charge a DC device?, Unit 2 Options | Tagged , , , | Leave a comment