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  • Ratio of thermal energy released in two resistors R and 3R connected in parallel in an electric circuit is :  Option: 1 1 : 27 <

Ratio of thermal energy released in two resistors R and 3R connected in parallel in an electric circuit is :
 

Option: 1

1 : 27 


Option: 2

1 : 1 


Option: 3

1 : 3 


Option: 4

3 : 1


Answers (1)

best_answer

\begin{aligned} & \mathrm{H}=\mathrm{I}^2 \mathrm{Rt}=\frac{\mathrm{V}^2}{\mathrm{R}} . \mathrm{t} \\ & \mathrm{V}=\text { const. } \\ & \text { So, } \mathrm{H} \alpha \frac{1}{\mathrm{R}} \\ & \frac{\mathrm{H}_1}{\mathrm{H}_2}=\frac{3 \mathrm{R}}{\mathrm{R}}=\frac{3}{1} \end{aligned}

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