B1, B2, B3, and B4 are identical light bulbs. There are six voltmeters connected to the circuit as shown. All voltmeters are connected so that they display positive voltages. Assume that the voltmeters do not affect the circuit.
If B2 were to burn out, opening the circuit, what would happen to the reading of V1? Let V be its original reading when all bulbs are functioning and let V be its reading when B2 is burnt out.