Current Electricity and Electrical InstrumentEasy
Question
A potential gradient is created in the wire by a standared cell for the comparision of emf′s of two cells in a potentiometer experiment. Which possibility of the following will cause failure of the experiment.
Options
A.the emf of the standard cell is higher than that of the other cells.
B.the diameter of the wires is equal and similar,
C.the number of wires is ten.
D.the emf of the standard cell is less than those of both the cells.
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