The Heater Element of a Particular 120-V Toaster Is a 8.9-M

question 9

Multiple Choice

The heater element of a particular 120-V toaster is a 8.9-m length of nichrome wire,whose diameter is 0.86 mm.The resistivity of nichrome at the operating temperature of the toaster is 1.3 × 10^-6 Ω • m.If the toaster is operated at a voltage of 120 V,how much power does it draw?

• A) 720 W
• B) 700 W
• C) 750 W
• D) 770 W
• E) 800 W