I am trying to trace electrical wiring in a brick wall and my wiring detector is not detecting it. I followed a tutorial to make an EMF detector to use with a compact fluorescent light which supposedly generates EMF on the wiring but this did not work. I bought an actual EMF detector but it only detects the wiring of a CFL if it's in physical contact. Would it be difficult/practical to make a circuit which I can connect to the earth pin of my socket to produce stronger EMF which I can then trace with my EMF detector?