A hair dryer that draws 6.0 A when operating across a 110-V potential has a resistance of
A) 0.05 $\Omega$.
B) 18 $\Omega$.
C) 660 $\Omega$.
D) 180 $\Omega$.

Question

A hair dryer that draws 6.0 A when operating across a 110-V potential has a resistance of
A) 0.05 $\Omega$.
B) 18  $\Omega$.
C) 660  $\Omega$.
D) 180  $\Omega$.

Quizplus · Accepted Answer

The resistance of the hair dryer can be calculated using Ohm's Law, which is V = IR, where V is the voltage, I is the current, and R is the resistance. Rearranging the formula to solve for R gives R = V/I. Substituting the given values, R = 110V / 6.0A = 18.33 ohms, which is rounded to 18 ohms as per the options provided.

A Hair Dryer That Draws 6 Ω\OmegaΩ B) 18 Ω\OmegaΩ C) 660

A Hair Dryer That Draws 6 $\Omega$
B) 18 $\Omega$
C) 660