1.

In a potentiometer experiment, the galvanometer shows no deflection when a cell is connected across 60 cm of the potentiometer wire. If the cell is shunted by a resistance of \[6\,\Omega \], the balance is obtained across 50 cm of the wire. The internal resistance of the cell is                                      [SCRA 1994]

A.                    \[0.5\,\Omega \]
B.                                      \[0.6\,\Omega \]
C.                    \[1.2\,\Omega \]        
D.            \[1.5\,\Omega \]
Answer» D.            \[1.5\,\Omega \]


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