9
QuizMultiple Choice

Electricity Use in Homes and Businesses — Quiz

Question 9 • Physics

A coffee maker has a power rating of 850 point 0 cap w and a resistance of 18 point 4 cap omega What is the current in the coffee maker?

Answer
A
0 point 0 2 1 6 cap A
B
0 point 1 4 7 cap A
C
46 point 2 cap A
D
6 point 8 0 cap A

Explanation

Use the power relationship P = I²R, so the current is I = √(P/R). Substituting the values gives I = √(850.0 W ÷ 18.4 Ω) ≈ √46.2 ≈ 6.80 A. Therefore, the current is 6.80 A, choice A.

AI-written and checked against the verified answer.

Previous
Next