Physics-
General
Easy

Question

In the circuit shown, X is joined to Y for a long time, and then X is joined to Z. The total heat produced in R subscript 2 end subscript text end text text is : end text

  1. fraction numerator L E to the power of 2 end exponent over denominator 2 R subscript 1 end subscript superscript 2 end superscript end fraction    
  2. fraction numerator L E to the power of 2 end exponent over denominator 2 R subscript 2 end subscript superscript 2 end superscript end fraction    
  3. fraction numerator L E to the power of 2 end exponent over denominator 2 R subscript 1 end subscript R subscript 2 end subscript end fraction    
  4. fraction numerator L E to the power of 2 end exponent R subscript 2 end subscript over denominator 2 R subscript 1 end subscript superscript 2 end superscript end fraction    

The correct answer is: fraction numerator L E to the power of 2 end exponent over denominator 2 R subscript 1 end subscript superscript 2 end superscript end fraction

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