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A Student measures the terminal potential difference (v) of a cell ( of emf ɛ and internal resistance r) as a fuction of current (I) flowing through it. the slope and the intercept, of the graph between V and I, than respectively, equal
Ans. The terminal voltage equation is V = ɛ – Ir, comparing with y = mx + c, the slope is -r and the intercept is ɛ.
Thus, the correct answer is (a) -r and ɛ.
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