Final answer:
The voltage across the 1900-Ω resistor can be determined using Ohm's law (V = IR), the arrangement of the resistors in the circuit, and the total voltage supplied. Without additional details about the circuit, a precise voltage cannot be provided.
Step-by-step explanation:
To find the voltage across the 1900-Ω resistor, we would need to know the total voltage supplied in the circuit and the arrangement of the resistors. In the case where the resistors are in series, the voltage drop across each resistor is directly proportional to its resistance. However, if the resistors are in parallel, the voltage across each resistor would be the same and equal to the total voltage supplied by the source.
Since the question seems to relate to a hypothetical circuit with insufficient details, we cannot provide an exact voltage without additional information. Normally, Ohm's law, which states V = IR (voltage equals current times resistance), is used to calculate the voltage across a resistor given the current through it and its resistance.
In any given circuit problem, you can use the total resistance and the total voltage to find the total current using Ohm's law (V = IR). To find the individual voltage drops in a series circuit, you can then multiply the total current by each resistor's individual resistance. In a parallel circuit, each branch has the same voltage as the source, assuming ideal conditions.