Question Detail
Question
Combination of three equal resistances in series is equivalent to 90 W. Equivalent power when in parallel?
Correct Answer
Option C is the correct answer.
Detailed Explanation
Series: P = V²/(3R) = 90 → V²/R = 270. Parallel: P_par = V²/(R/3) = 3V²/R = 3×270 = 810 W.
Hint
P ∝ 1/R for constant V.