A cell, shunted by a \( 8 \, \Omega \) resistance, is balanced across a potentiometer wire of length \( 3 \, \text{m} \). The balancing length is \( 2 \, \text{m} \) when the cell is shunted by \( 4 \, \Omega \) resistance. The value of internal resistance of the cell will be ____ \( \Omega \).
