In the circuit shown swith S is connected to position 2 for a long time and then joined to position 1. The total heat produced in resistance R1 is:
In the circuit shown swith S is connected to position 2 for a long time and then joined to position 1. The total heat produced in resistance R1 is:
Option 1 - <p><span class="mathml" contenteditable="false"> <math> <mrow> <mfrac> <mrow> <mi>L</mi> <mtext> </mtext> <msup> <mrow> <mi>E</mi> </mrow> <mrow> <mn>2</mn> </mrow> </msup> </mrow> <mrow> <mn>2</mn> <msub> <mrow> <mi>R</mi> </mrow> <mrow> <mn>2</mn> </mrow> </msub> </mrow> </mfrac> </mrow> </math> </span></p>
Option 2 - <p><span class="mathml" contenteditable="false"> <math> <mrow> <mfrac> <mrow> <mi>L</mi> <mtext> </mtext> <msup> <mrow> <mi>E</mi> </mrow> <mrow> <mn>2</mn> </mrow> </msup> </mrow> <mrow> <mn>2</mn> <msubsup> <mrow> <mi>R</mi> </mrow> <mrow> <mn>1</mn> </mrow> <mrow> <mn>2</mn> </mrow> </msubsup> </mrow> </mfrac> </mrow> </math> </span></p>
Option 3 - <p><span class="mathml" contenteditable="false"> <math> <mrow> <mfrac> <mrow> <mi>L</mi> <mtext> </mtext> <msup> <mrow> <mi>E</mi> </mrow> <mrow> <mn>2</mn> </mrow> </msup> </mrow> <mrow> <mn>2</mn> <msub> <mrow> <mi>R</mi> </mrow> <mrow> <mn>1</mn> </mrow> </msub> <msub> <mrow> <mi>R</mi> </mrow> <mrow> <mn>2</mn> </mrow> </msub> </mrow> </mfrac> </mrow> </math> </span></p>
Option 4 - <p><span class="mathml" contenteditable="false"> <math> <mrow> <mfrac> <mrow> <mi>L</mi> <mtext> </mtext> <msup> <mrow> <mi>E</mi> </mrow> <mrow> <mn>2</mn> </mrow> </msup> <msup> <mrow> <mrow> <mo>(</mo> <mrow> <msub> <mrow> <mi>R</mi> </mrow> <mrow> <mn>1</mn> </mrow> </msub> <mo>+</mo> <msub> <mrow> <mi>R</mi> </mrow> <mrow> <mn>2</mn> </mrow> </msub> </mrow> <mo>)</mo> </mrow> </mrow> <mrow> <mn>2</mn> </mrow> </msup> </mrow> <mrow> <mn>2</mn> <msubsup> <mrow> <mi>R</mi> </mrow> <mrow> <mn>1</mn> </mrow> <mrow> <mn>2</mn> </mrow> </msubsup> <msubsup> <mrow> <mi>R</mi> </mrow> <mrow> <mn>2</mn> </mrow> <mrow> <mn>2</mn> </mrow> </msubsup> </mrow> </mfrac> </mrow> </math> </span></p>
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Correct Option - 1
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