Question

Ustine's hair dryer has a resistance of 9.00 ohms when first turned on.

a) How much current does the hair dryer draw from the 110-V line in Justine's house?
A) 12.22 A
B) 10.00 A
C) 9.00 A
D) 1.21 A

Answer 1

The hair dryer draws a current of 12.22 A from the 110-V line in Justine's house.

Step-by-step explanation:

To calculate the current drawn by the hair dryer from the 110-V line, we can use Ohm's Law: V = IR, where V is the voltage, I is the current, and R is the resistance. In this case, V = 110 V and R = 9.00 Ω. Plugging these values into the equation, we get I = V/R = 110/9.00 = 12.22 A. Therefore, the hair dryer draws a current of 12.22 A from the 110-V line in Justine's house.