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    				| 1. | 
                                    AB is a potentiometer wire of length 100 cm. when a cell `epsi_(2)` is connected across AC, where AC=75cm, no current flows from `epsi_(2)`. Find (i) the potential gradient along AB and (ii) emf of the cell `epsi_(2)`. the internal resistance of the cell `epsi_(1)` is negligible. | 
                            
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Answer» Correct Answer - (i). 0.02 volt/cm, (ii). 1.5 V | 
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