What is the current flow in a circuit with an applied voltage of 120 volts and a resistance of 80 ohms?

What is the current flow in a circuit with an applied voltage of 120 volts and a resistance of 80 ohms?

• A. 9600 amperes
• B. 200 amperes
• C. 0.667 amperes
• D. 1.5 amperes

Answer: (D)

To determine the current flow in a circuit, you can use Ohm's Law, which states that current (I) is equal to the voltage (V) divided by the resistance (R). In this case, the voltage applied is 120 volts, and the resistance is 80 ohms. Using the formula: \[ I = \frac{V}{R} \] Substituting the given values: \[ I = \frac{120 \text{ volts}}{80 \text{ ohms}} \] \[ I = 1.5 \text{ amperes} \] Thus, the current flow in the circuit is 1.5 amperes. This value correctly represents the current given the specified voltage and resistance, making it the accurate choice among the options provided. The other potential answers do not fit the calculation based on Ohm’s Law, as they suggest values that would require either much higher voltages or much lower resistances to be valid.

To determine the current flow in a circuit, you can use Ohm's Law, which states that current (I) is equal to the voltage (V) divided by the resistance (R). In this case, the voltage applied is 120 volts, and the resistance is 80 ohms.

Using the formula:

[ I = \frac{V}{R} ]

Substituting the given values:

[ I = \frac{120 \text{ volts}}{80 \text{ ohms}} ]

[ I = 1.5 \text{ amperes} ]

Thus, the current flow in the circuit is 1.5 amperes. This value correctly represents the current given the specified voltage and resistance, making it the accurate choice among the options provided. The other potential answers do not fit the calculation based on Ohm’s Law, as they suggest values that would require either much higher voltages or much lower resistances to be valid.