If I wire three button cell batteries in series, their voltages should be summed. Now, if a battery dies, let's say
BAT3 for the sake of example, will the circuit operate at 6V or will it stop working? I would assume, due to the way series circuits are defined. that it would stop functioning, but then I realize that a battery is conductive, making me think that current would still flow, just at a lower voltage.
Which scenario would happen? I've provided a simple circuit diagram below.