Hello All, I am an elactrical student in the U.A.E University and I plan to do an electrical day and I don't know what to do in this day so Can I have your suggestion for this day and what kind of activeties, please?

In my bedroom, one switch and two receptacles do not have power running to them. I disconnected the switch and it tested fine for continuity but the wires had no voltage with all of the breakers turned on. The other switches and receptacles in the room have power going to them and work fine. I also removed the cover at the panel to look for disconnected wires but everything looked ok and I do not have any tripped breakers. Here are my questions: 1) If I have a bad breaker, would it be tripped, or could it still be in the on position but not providing power? How can I test a breaker for continuity? 2) Could the cause of this be a loose wire on one of the receptacles (or a bad receptacle) thus kiling the run to the other receptacle and switch? Any help would be greatly appreciated.