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) 1 : 1

(2) 2 : 9 

(3) 1 : 2 

 (4) 2 : 3                             NEET -2024 

Solution:                
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:

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