Add Yahoo as a preferred source to see more of our stories on Google. You’ve no doubt heard the carpentry proverb “Measure twice, cut once” and may even have made it a mantra for your own projects.

In Part 1 of the Electronics for Kids series, we looked at LEDs; in Part 2, we explored capacitors. Now in Part 3, we will take an in-depth look at electrical measurements. It is impossible to discuss ...