Chapter SH, Problem 6.12APP

To determine

To calculate: Electrical power used by the hair dryer.

Answer to Problem 6.12APP

Electrical power used by the hair dryer is $\underset{\_}{960\text{ W}}$ .

Explanation of Solution

Given:

Voltage difference = $\text{120 V}$

Current = $8\text{ A}$

Formula used:

Power is given by,

  $P=IV$

Where I is current and V is voltage difference.

Calculation:

Power is calculated as:

  $\begin{array}{l}P=IV\\ P=\left(8\text{ A}\right)\left(120\text{ V}\right)\\ P=960\text{ W}\end{array}$

Conclusion:

Electrical power used by the hair dryer is $\underset{\_}{960\text{ W}}$ .