circuit board

I'm doing a garage conversion and looking to do the simpler jobs myself. Electrics obviously isn't one of those tasks but as I am doing the stud and ceiling insulation etc, can I lay 2.5mm electic wires so that its in place for the electrician to wire up? My thinking is, start near the main...

Hi. I’m wanting to repair the pcb on my cooker hood. I’ve attached a picture. My issue is that the tracts are a lot wider (around 5mm) than the jumper wire I was planning on using and I wasn’t sure if I should be using a lower gauge wire; I’ve was planning on using enamelled copper wire AWG ~29...