Question 41
Electrical Energy and PowerThe total power drawn from the cell in the circuit diagram above is
- A.12 W
- B.24 W
- C.32 W
- D.40 W
Show the answer and explanation
Answer: B (24 W)
Explanation
The two 4 Ω in parallel give 2 Ω; with the series 4 Ω the total is 6 Ω. P = V²/R = 12²/6 = 24 W.