1.

For a cell of e.m.f. 2V, a balance is obtained for 50 cm of the potentiometer wire. If the cell is shunted by a \[2\,\Omega \] resistor and the balance is obtained across 40 cm of the wire, then the internal resistance of the cell is                                 [SCRA 1998]

A.                    \[0.25\,\Omega \]
B.                                      \[0.50\Omega \]
C.                    \[0.80\,\Omega \]      
D.            \[1.00\,\Omega \]
Answer» C.                    \[0.80\,\Omega \]      


Discussion

No Comment Found

Related MCQs