I recently bought an older house and on one of the circuits every outlet (7 outlets spread out over two rooms) gives a "hot/neutral reverse" reading when I use a circuit tester. I looked at each outlet and each one has the correct wiring colors (black to brass, white to silver, and copper to green). Then I measured the voltages using a DMM, and I get the following results (on every outlet): hot to neutral: 120V, hot to ground: 0V (!) and neutral to ground: 120V (!). Then lastly I used a non-contact voltage reader and on every outlet it lights up on BOTH the ground and the hot wires, but not on the neutral wires. Why would the ground wires be live?
Update: thanks for all your responses so far. I used a circuit analyzer and found some more details 1) analyzer also says it's a hot neutral reverse 2) ground to neutral shows 33.5 volts rms 3) ground to hot shows 121V RMS 4) ELL (estimated line load) is weirdly high, 20 amps when there's nothing plugged into any of the outlets (no fans or anything similar on the circuit either). 5) voltage drop is higher than it should be, highest reading was 11% drop for 20 amps 6) impedance is high too, hot reading impedance was 0.67 ohms.
I scheduled an appointment with a professional electrician since the knowledge from my college circuits course and some googling is feeling tapped out. I'll update this post with whatever the pro finds.