What is the voltage in a 30 and Omega circuit with a power rating of 480W?

To find the voltage in a circuit with a power rating of 480W and a resistance of 30 ohms (Ω), you can use the formula ( P = V^2 / R ). Rearranging this gives ( V = \sqrt{P \times R} ). Plugging in the values, ( V = \sqrt{480W \times 30Ω} = \sqrt{14400} = 120V ). Thus, the voltage in the circuit is 120 volts.