Question

ohms law
quiz complete
a hair dryer has a resistance of 11.5ω. what current does it conduct when it is plugged into a wall outlet that provides 120 v?
0.10 a
10.4 a
100 a
1380 a

Explanation:

Step1: Recall Ohm's Law formula

$I = \frac{V}{R}$ where $V=120\,\text{V}$ and $R=11.5\,\Omega$

Step2: Calculate current

$I = \frac{120}{11.5} \approx 10.4\,\text{A}$

Answer:

10.4 A