NEET 2024 Physics Power MCQ Question
Two heaters A and B have power rating of 1 kW and 2 kW, respectively. Those two are first connected in series and then in parallel to a fixed power source. The ratio of power outputs for these two cases is:
1 : 2
2 : 3
1 : 1
2 : 9
Correct Answer
Detailed Explanation
In series, the power is proportional to the square of the current, and in parallel, it is proportional to the voltage. The ratio of power outputs is (1² + 2²) : (1 + 2)² = 5 : 9.
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