What is the resistance of a lamp that operates at 120 volts and requires 0.83 amps of current?

To determine the resistance of the lamp, Ohm's Law can be applied, which states that Voltage (V) = Current (I) × Resistance (R). Rearranging the formula to find resistance gives us R = V / I.

In this scenario, the lamp operates at 120 volts (V) and requires 0.83 amps of current (I). Plugging these values into the formula yields:

R = 120V / 0.83A.

Calculating this gives R = 144.58 ohms. This calculation aligns with the correct answer choice. Knowing how to use Ohm's Law is essential for understanding electrical circuits, as it provides the relationship between voltage, current, and resistance. Thus, the resistance of the lamp can be accurately calculated as 144.58 ohms, confirming the answer provided.