A battery of emf E0=12 V is connected across a 4 m long uniform wire having resistance 4 Ω/m. The cells of small emfs ε1=2 V and ε2=4 V having internal resistance 2 Ω and 6 Ω respectively, are connected as shown in the figure. If galvanometer shows no deflection at the point N, the distance of point N from the point A is equal to (in cm)

A battery of emf E0=12 V is connected across a 4 m long uniform wire h

1.	A battery of emf E0=12 V is connected across a 4 m long uniform wire having resistance 4 Ω/m. The cells of small emfs ε1=2 V and ε2=4 V having internal resistance 2 Ω and 6 Ω respectively, are connected as shown in the figure. If galvanometer shows no deflection at the point N, the distance of point N from the point A is equal to (in cm)
Answer» A battery of emf $E_{0} = 12 V$ is connected across a $4 m$ long uniform wire having resistance $4 Ω / m$ . The cells of small emfs $ε_{1} = 2 V$ and $ε_{2} = 4 V$ having internal resistance $2 Ω$ and $6 Ω$ respectively, are connected as shown in the figure. If galvanometer shows no deflection at the point $N$ , the distance of point $N$ from the point $A$ is equal to (in $cm$ )

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