To do this, we use Ohm's Law: \( I = \frac{V}{R} \), where \( I \) is the current, \( V \) is the voltage, and \( R \) is the resistance.
For the hair dryer: \( I_{\text{hair dryer}} = \frac{110 \text{ V}}{12 \text{ } \Omega} \approx 9.17 \text{ A} \).
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