Making a Full Bridge Rectifier and grounding problems with scope

[ez24]

This shows the hazard of using the ground clip on a scope.  Dave has a video on why this happens.  Would someone put a link to it please.

[Len]

Here's Dave's video:
http://youtu.be/xaELqAo4kkQ

[DimitriP]

Or .... eevblog oscilloscope will return all of Dave's oscilloscope videos
https://www.youtube.com/results?search_query=eevblog+oscilloscope
Much faster than creating a post and waiting for an answer

[Simon]

easy solution, if in doubt use both your channels and set them to math A-B or vice versa, that way you end up with a single channel scope with an isolated* differential input. Of course this means your sample rate is reduced to 1/2 and your memory will also be shared.

*within the normal input limits of your scope

[fubar.gr]

I like Electroboom's videos, because he usually explains in detail the dangers of what he's doing, but here he's doing something extremely dangerous while making it look safe.

Isolating the oscilloscope by defeating the ground prong is a very bad idea. If you then connect the aligator clip to the live wire, the whole oscilloscope internal metal shield, including the exposed BNC connectors at the front, will be brought to mains voltage!

Simply brushing your hand against the channel connectors at the fron panel will be enough to electrocute you.