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Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > In a potentiometer experiment it is found that no current passes through the galvanometer when the terminals of the cell are connected across 0.52m of the potentiometer wire. If the cell is shunted by a resistance of 5Ω balance is obtained when the cell connected across 0.4 m of the wire. Find the internal resistance of the cell.

In a potentiometer experiment it is found that no current passes through the galvanometer when the terminals of the cell are connected across 0.52m of the potentiometer wire. If the cell is shunted by a resistance of 5Ω balance is obtained when the cell connected across 0.4 m of the wire. Find the internal resistance of the cell.

In the circuit shown R = 10 ohm and V = 100 volt . With switch S open the reading of ammeter is one third its reading when 'S' is closed. calculate the resistance of the ammeter ( in ohm ).