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Grade 12th passGeneral Physics

Why this set up is not possible?(image attached) of the question)

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Profile image of Parul Rajput
9 Years agoGrade 12th pass
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Profile image of Khimraj
9 Years ago
When terminal of E2 is interchanged then net polarity of secondary circuit become opposite and it`s potential add with primary circuit battery on potential wire. So it can not balanced.Hope it clears. If still u have doubts then please clarify. If u like answer then please approve the answer.