Free calculations lesson
Calculate current, voltage, and resistance.
Question 1 of 4
A 30 Ω resistive load is connected to 240 V. How much current does it draw?
A0.125 A
B7,200 AYour answer
C8 ACorrect answer
D210 A
Incorrect. You chose B. The correct answer is C: 8 A.
7,200 comes from multiplying 240 by 30. To find current, use I = E ÷ R: 240 ÷ 30 = 8 A.
Check the method
Try a fresh problem using the same method. It does not count toward your score.