GMc
I did not mean to imply you were wrong. I should have chosen my words more carefully. I do apologize for that. I may well be wrong, possibly my blondeness asserting itself, yet again
. I will not conceed until I am able to try this on some modern instruments. This weekend or next week I should get an opportunity. The point I was trying to make was the reading might not be absolute zero. The meter might read some small amount. Looking back I see where you could have taken my post not as it was intended.
On electro-mechanical instrument like a KA-241 panel meter I am in complete agreement that the current on the meter will drop to zero. I am not sure it will be zero on a modern electronic meter. I think the reading will approach zero. I will short some blocks while doing some routine tests & report my readings back here. Stay tuned to see how blonde I am !
Also while posting I was thinking about an FT-1 test switch that 30 years ago could bring the current reading to zero by lowering the shorting knife switch. That test switch is now lucky to drop the reading to 40%, because the burden is so low in a modern meter or relay.