JEE Mains Model Paper 5

A battery of emf E0 = 12 V is connected across a 4 m longuniform wire having resistance 4 Ω/m. The cells of smallemfs ε1 = 2 V and ε2 = 4 V having internal resistance2 Ω and 6 Ω respectively, are connected as shown in thefigure. If galvanometer shows no deflection at the point N,the distance of point N from the point A is equal to