Final answer:
To find the voltage across the parallel resistor combination, first calculate the total current in the circuit using Ohm's law. Then, use the current and the individual resistor values to find the voltage across the parallel resistors.
Step-by-step explanation:
To find the voltage across the parallel resistor combination in the circuit, we first need to find the equivalent resistance. Using Ohm's law, the total current in the circuit can be found by dividing the voltage of the battery (12.0 V) by the total resistance (5.11 Ω). This gives us a current of 2.35 A.
Next, we can use the current and the individual resistor values to find the voltage across the parallel resistor combination. Since the resistors are in parallel, they have the same voltage drop. Therefore, the voltage across the parallel resistors is also 2.35 V.