20ohm shunt to balance length 125 cm 25ohm shunt to balance 140 cm Find original balance length without shunt and internal resistance of cell

20ohm shunt to balance length 125 cm 25ohm shunt to balance 140 cm F

1.	20ohm shunt to balance length 125 cm 25ohm shunt to balance 140 cm Find original balance length without shunt and internal resistance of cell
Answer» he internal resistance of cell is given by :-R=( 124 −1)R (l 1 : balance length without shuntl 2 : balance length with shuntR: connoted SHUNT in series with cell)⇒r=( 100150 −1)×2=(1.5−1)×2=1Ω (ANS)

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20ohm shunt to balance length 125 cm 25ohm shunt to balance 140 cm Find original balance length without shunt and internal resistance of cell

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