With three resistances connected in parallel, if each dissipates 20 W the total power supplied by the voltage source equals_____________?
Correct answer: D. 60 W
- A. 10 W
- B. 20 W
- C. 40 W
- D. 60 W
Explanation
In a parallel circuit, the source supplies the sum of the power absorbed by all branches. Thus, 20 W + 20 W + 20 W = 60 W.
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