I am trying to better understand how ground loops affect a circuit and why it is important to do not have ground loop on a circuit. So I am trying to look at systems with ground loop to further understand and see the effects.
As all the BNC connectors of the oscilloscope are connected between each other, there is a ground loop when we used two probes connected to the same ground of a board. Nevertheless, I never see problems on my measures due to ground loops or at least it was not impactful. So why this kind of ground loop has so little effect? And The ground loop with oscilloscope probe is pretty large! So it should have a large effect. So is there something to prevent the ground loop effect into the oscilloscope? Does anyone know when ground loop become relevant into a system?