Question

1. a portable hair dryer, plugged into a 110 v outlet, has a current of 10 a flowing through it. what is the power rating of the hair dryer?

Explanation:

Step1: Recall Power Formula

Power \( P \) in an electrical circuit is given by \( P = V \times I \), where \( V \) is voltage and \( I \) is current.

Step2: Substitute Values

Given \( V = 110 \, \text{V} \) and \( I = 10 \, \text{A} \), substitute into the formula:
\( P = 110 \, \text{V} \times 10 \, \text{A} \)

Step3: Calculate Result

\( 110 \times 10 = 1100 \, \text{Watts} \)

Answer:

The power rating of the hair dryer is \( \boldsymbol{1100 \, \text{W}} \) (or 1.1 kW).