Potential of the terminals on a DC power supply

[pkc111]

TL;DR

Hi there
On a 12VDC transformer we use at school. Is the positive terminal +6V above ground potential and the negative terminal -6V below ground potential?
Thank You

Summary: Hi there
On a 12VDC transformer we use at school. Is the positive terminal +6V above ground potential and the negative terminal -6V below ground potential?
Thank You

Hi there
On a 12VDC transformer we use at school. Is the positive terminal +6V above ground potential and the negative terminal -6V below ground potential?
Thank You

 

[Dale]

What does the manufacturer’s documentation say?

 

[NascentOxygen]

Summary:
On a 12VDC transformer we use at school. Is the positive terminal +6V above ground potential and the negative terminal -6V below ground potential?

Maybe, maybe not. One clue might be if there's a third terminal labelled GND.