Questions 84-85
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.
84. If B2 were to burn out, opening the circuit, which voltmeter(s) would read zero volts?
(A) none would read zero
(B) only V2
(C) only V3 and V4
(D) only V2,V4, and V5