a current of 72 m.A. flows through a potentiometer wire of length 10m whose resistance is 25 ohm. if balance point is 600 cm then calculate the emf of the cell
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resistance per unit length=2.5
EMF = i× resit per length × l
=.072×6×2.5
=1.08 V
EMF = i× resit per length × l
=.072×6×2.5
=1.08 V
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