Final answer:
In a parallel circuit, the voltage across each resistor is equal to the voltage across the battery; therefore, the battery voltage is the same as the individual resistors, which is 2 volts.
Step-by-step explanation:
In reference to the student's question regarding the voltage in a given circuit, when dealing with resistors in a parallel configuration, the voltage across each resistor is the same as the voltage across the battery.
Therefore, if each of the 3 resistors has a voltage of 2 V in parallel, the battery also has to supply 2 V to be consistent with the parallel configuration. Hence, the correct answer to what is the voltage across the battery in the circuit is 2 volts.
In a parallel circuit, the voltage across each resistor is the same as the voltage across the battery. Since the given circuit has three resistors with voltages of 2 V each, the voltage across the battery in the circuit will be 2 volts.