The voltage before it is hooked up to a resistive load.
As load is conected in circuit , so thre is no open circuit therefore there would not be any open circuit voltage.
There is no particular benefit for having a higher open-circuit (or 'no-load') voltage. In fact, an ideal voltage source would have no internal resistance and, therefore, its open-circuit voltage would be identical to its closed-circuit voltage.
The voltage measured across an open in a series circuit is the equivalent of the sourse voltage.
The first thing you need to know is the internal resistance of the current source, the voltage source will have the same internal resistance. Then compute the open circuit voltage of the current source, this will be the voltage of the voltage source. You are now done.
A: All batteries will eventually fail when that occurs the voltage out of then can be zero or higher voltage when new, In that case the battery has failed but if you measure the output it will have a higher voltage because there is no load or open circuit as soon as the load is applied the voltage just disappear this condition is called open circuit voltage
Voltage is potential energy and can exist in a open circuit.
In a 120V circuit with an open fuse, you would expect the voltage across the open fuse to be approximately 120 volts. This is because the open fuse creates a break in the circuit, preventing current from flowing, but the voltage remains present across the open points. The voltage is effectively the same as the supply voltage since there is no current to drop the voltage across the fuse.
The full circuit voltage
Three ways a circuit can be made to be open are, blown fuse, open switch and open contact.
When the switch is open, the voltmeter measures the potential difference or voltage across the two points connected by the switch, as no current flows through the circuit. This measured voltage is often referred to as the open-circuit voltage.
Such a circuit either has no voltage source, or some part of the circuit is open, e.g., an open switch.
12v