Question

what current flows through a hair dryer plugged into a 120 volt circuit if it has a resistance of 25 ohms?

Explanation:

Step1: Recall Ohm's Law

Ohm's Law is \(I=\frac{V}{R}\), where \(I\) is current, \(V\) is voltage, and \(R\) is resistance.

Step2: Substitute values

Given \(V = 120\) volts and \(R=25\) ohms. Substitute into the formula: \(I=\frac{120}{25}\).

Step3: Calculate the current

\(I = 4.8\) amperes.

Answer:

\(4.8\) amperes.