118 A Rude Awakening (media.greatawakening.win) posted 2 years ago by hundro 2 years ago by hundro +119 / -1 15 comments download share 15 comments share download save hide report block hide replies
You'd still get a shock from a 9v
True, but you can test 9V batteries with your tongue to see if they have charge.
It was one of the most tedious and counter-intuitive part to understand "internal resistance" of a battery.