When measuring a standard North American 120V outlet with a multimeter, what approximate AC voltage reading should you expect?
- A12V DC
- B110–125V AC
- C220–240V AC
- D5V DC
Correct Answer
110–125V AC
Explanation
Standard North American single-phase residential outlets supply 110–125V AC (nominal 120V). Commercial equipment may require 208V or 240V on separate dedicated circuits.

