Why ohm's ranges + lead is black and - lead is red.

Sunday, March 9, 2014

Q. I have the analog meter that comes standard with my course. In lesson 1408 it says that on the ohms ranges, the + lead is the black one and the - lead is the red one. Isn't this backwards? I thought red was always + and black was always -.

A. To make the red lead + and the black lead - on the ohmmeter ranges would require an extra set of contacts on the range selector switch. This would make the meter more expensive than necessary, the extra cost would be reflected in the cost of your course.

The extra contacts would also make the switch more complicated, which would reduce the reliability of the meter. When we chose this meter, we felt that our students would be able to understand this difference. If you wish, you can simply unplug the leads from the meter and swap them around when yolu are using a resistance range. 

Leave your comment
Comments
8/21/2022 2:56 PM
cbg gummies

I suffered with searing painful tendonitis in both thumbs as a replacement for years after I resumed playing violin. The injury in actuality occurred round 2008 when I stock-still did figures and telecommunications wiring installs. My doctor was nervous nearby my heavy privilege consumption of ibuprofen. Then I bought some torch diamond thc-o because of purchasing at a neighbourhood nursery. After a week of 3x <a href=https://neurogan.com/products/cbg-gummies>cbg gummies</a> diurnal employ my socialistic хэнд essentially was healed. I then applied the palliative to my true хэнд and it was haler within a week, without interrupting my rehearsal routine.