pfalstad/circuitjs1

What's going on here?

SirClickALot opened this issue · 3 comments

Here's the simple example potentiometer circuit with a couple of voltmeters in added in what I reckon is the correct polarity but if you look at the animated version, why is the top Voltmeter showing -2.5v instead of 2.5v?

I'm a bit thrown by this.

Thanks

circuit_animated

the voltmeters aren't connected properly. That's why you're seeing red dots at the ends. Also, it should say "2 bad connections" in the lower right. Components can only be connected at the endpoints (the white dots).

The unconnected terminals are at ground, so the bottom voltmeter happens to be correct (because we are measuring the difference between the 2.5 V terminal and ground). With the top one, we are measuring the difference between ground and 2.5 V, which is -2.5 V