Final answer:
According to Ohm's law, if the voltage in an electric circuit is held constant, the current is inversely proportional to the resistance. To find the current when the resistance is 120 ohms, we can use the equation I = V/R and substitute the given values.
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 (Ω). If the voltage V in an electric circuit is held constant, the current I is inversely proportional to the resistance R. This means that as the resistance increases, the current decreases, and vice versa.
To find the current I when the resistance is 120 ohms, we can use the equation I = V/R. Since the voltage V is held constant, we can substitute it with the given value. Plugging in the values, we get I = 192/120 = 1.6 A.