For a 120-volt supply, what will be the current if connected to a load of 30 ohms?

For a 120-volt supply, what will be the current if connected to a load of 30 ohms?

• A. 2.5 amperes
• B. 4 amperes
• C. 3.5 amperes
• D. 1.5 amperes

Answer: (A)

To find the current flowing through a circuit when voltage and resistance are known, Ohm's Law, which states that current (I) is equal to voltage (V) divided by resistance (R), can be applied. The formula is: I = V / R In this scenario, the voltage is 120 volts and the resistance is 30 ohms. Plugging in these values provides: I = 120 volts / 30 ohms = 4 amperes. This calculation shows that the current for a 120-volt supply connected to a load of 30 ohms is 4 amperes. Therefore, the correct choice is the one that specifies 4 amperes as the current. Understanding this principle is essential for anyone working with electrical systems, as it allows one to determine the expected current through a circuit under specific conditions. This kind of electrical calculation is critical for the safe and effective design and troubleshooting of electrical circuitry in commercial kitchen equipment.

To find the current flowing through a circuit when voltage and resistance are known, Ohm's Law, which states that current (I) is equal to voltage (V) divided by resistance (R), can be applied. The formula is:

I = V / R

In this scenario, the voltage is 120 volts and the resistance is 30 ohms. Plugging in these values provides:

I = 120 volts / 30 ohms = 4 amperes.

This calculation shows that the current for a 120-volt supply connected to a load of 30 ohms is 4 amperes. Therefore, the correct choice is the one that specifies 4 amperes as the current.

Understanding this principle is essential for anyone working with electrical systems, as it allows one to determine the expected current through a circuit under specific conditions. This kind of electrical calculation is critical for the safe and effective design and troubleshooting of electrical circuitry in commercial kitchen equipment.