Mathematics · Aptitude and Numerical Problems
In an electric circuit, a cell of a certain electromotive force (emf) provides a potential difference of 1.25 V across an external load resistance of 5 Ω. However, it provides a potential difference of 1 V across a load resistance of 2 Ω. If the emf of the cell is represented as x10 V, then find the value of x.
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Correct answer
15
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