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In Process 2, total energy dissipated across the resistance E D is :

E D = 3 1 ⎟ ⎠ ⎞ ⎜ ⎝ ⎛ 2 0 CV 2 1
E D = 3 ⎟ ⎟ ⎠ ⎞ ⎜ ⎜ ⎝ ⎛ 2 0 CV 2 1
E D = 2 0 CV 2 1
E D = 3 2 0 CV

Correct answer: E D = 3 1 ⎟ ⎠ ⎞ ⎜ ⎝ ⎛ 2 0 CV 2 1

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