In a 240 volt circuit with a 20 amp load, what characterizes the resistance?

In a 240 volt circuit with a 20 amp load, what characterizes the resistance?

• A. Resistance is high
• B. Resistance cannot be determined
• C. Resistance can be calculated
• D. Resistance is irrelevant

Answer: (C)

In a 240 volt circuit with a 20 amp load, the resistance can be calculated using Ohm’s Law, which states that Voltage (V) = Current (I) × Resistance (R). Rearranging this formula gives us Resistance (R) = Voltage (V) / Current (I). In this scenario, we can plug in the values: Resistance = 240 volts / 20 amps, which results in a resistance of 12 ohms. This calculation demonstrates that resistance is not only determinable but can be specifically quantified based on the voltage and current flowing in the circuit. Understanding this relationship is essential in electrical engineering and circuit design, as it helps in calculating how components will behave under various loads, ensuring safety and efficiency in electrical systems.

In a 240 volt circuit with a 20 amp load, the resistance can be calculated using Ohm’s Law, which states that Voltage (V) = Current (I) × Resistance (R). Rearranging this formula gives us Resistance (R) = Voltage (V) / Current (I).

In this scenario, we can plug in the values: Resistance = 240 volts / 20 amps, which results in a resistance of 12 ohms. This calculation demonstrates that resistance is not only determinable but can be specifically quantified based on the voltage and current flowing in the circuit.

Understanding this relationship is essential in electrical engineering and circuit design, as it helps in calculating how components will behave under various loads, ensuring safety and efficiency in electrical systems.