What voltage would a meter indicate between two specific points in a circuit with the SBJ installed?

In a circuit where the service-entrance bus jumpers (SBJ) are installed, the behavior of voltage readings can vary based on the configuration and load conditions of the circuit. If the circuit is designed for standard household power, typically 120 volts is the expected voltage measured across any two points in a circuit that is configured to provide single-phase 120V service.

When measuring across two specific points that are both tied into this circuit, the meter will indicate the operational voltage supplied by the service, which, in this instance, would be 120 volts. This value represents the typical voltage supplied to electrical outlets in many residential applications.

While other voltage values like 240 volts might be encountered in certain configurations, they generally apply to circuits designed specifically for heavy appliances using a double-pole breaker. The absence of any indication for 0 volts or 90 volts also aligns with the typical electrical standards found in residential settings, where either the equipment is operational (120 volts) or simply not energized (0 volts).

Therefore, the indication of 120 volts accurately describes the expected operational voltage found when measuring with a meter across appropriately connected points in this circuit scenario.