For a cell of e.m.f. 2 V , a balance is obtained for 50 cm of the potentiometer wire. If the cell is shunted by a `2Omega` resis

For a cell of e.m.f. 2 V , a balance is obtained for 50 cm of the potentiometer wire. If the cell is shunted by a `2Omega` resistor and the balance is obtained across 40 cm of the wire, then the internal resistance of the cell is
A. `0.25Omega`
B. `0.50Omega`
C. `0.80Omega`
D. `1.00Omega`

For a cell of e.m.f. 2 V , a balance is obtained for 50 cm of the potentiometer wire. If the cell is shunted by a `2Omega` resistor and the balance is

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