Two cells of E.M.F. E 1 and E 2 (E 2 > E 1 ) are connected in series in the secondary circuit of a potentiometer experiment for determination of E.M.F. The balancing length is found to be 825 cm. Now when the terminals of cell E 1 are reversed, then the balancing length is found to be 225 cm. The ratio of E 1 and E 2 is
Text Solution
Verified by ExpertsThe correct answer is:
B
Dividing above equations, we get
Appling componendo and dividendo, we get
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