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प्रश्न
Draw the shape of the graph showing the variation of terminal voltage V of the cell as a function of current I drawn from it. How one can determine the e.m.f. of the cell and its internal resistance from this graph?
आलेख
लघु उत्तरीय
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उत्तर
The graph shows the variation of terminal voltage V with current I.
Variation of Terminal Voltage with Current:
The y-intercept of the graph gives the emf (E) of the cell.
The slope of the graph (−r) gives the internal resistance (r) of the cell.
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