A hair dryer operates at 120 V (the voltage produced by a household outlet), and outputs 1200 W of energy. For this problem, treat the hair dryer as a single resistor. 

(a) At what current does the hair dryer operate?
(b) What is the resistance of the hair dryer?

• A. (a) i=0.1 A;
  (b) R=8.3×10⁻⁵ Ω
• B. (a) i=10 A;
  (b) R=0.083 Ω
• C. (a) i=10 A;
  (b) R=12 Ω
• D. (a) i=0.1 A;
  (b) R=120,000 Ω