Final answer:
According to Ohm's law, the current in a circuit can be calculated using the equation V = IR. In this case, (9 volts + 9 volts) /9 ohms = 2 amps
Step-by-step explanation:
According to Ohm's law, the voltage drop, V, across a resistor when a current flows through it is calculated using the equation V = IR, where I equals the current in amps (A) and R is the resistance in ohms (2). So, to find the current in this circuit, we can use Ohm's law: (9 volts + 9 volts) /9 ohms = 2 amps.