A battery of emf `E_0=12V` is connected across a `4 m` long uniform wire having resistance `4Omega//m`. The cell of small emfs `epsilon_1=2V` and `epsilon_2=4V` having internal resistance `2Omega` and `6Omega` respectivley are connected as shown in the figure. If galvanometer shows no diflection at the point `N` the distance of points `N` from the point `A` is equal to

A battery of emf E_(0) = 12 V is connected across a 4 m long uniform wire having resistance (4 Omega)/(m) . The cells of small emfs epsilon_(1) = 2 V and epsilon_(2) - 4 V having internal resistance 2 Omega and 6 Omega respectively, are connected as shown in the figure. If galvanometer shows no deflection at the point N , the distance of point N from teh point A is equal to

A battery of emf epsilon_0=10V is connected across a 1m long uniform wire having resistance 10Omega//m. Two cells of emf epsilon_1=2V and epsilon_2=4V having internal resistance 1Omega and 5Omega respectively are connected as shown in the figure. If a galvanometer shows no deflection at the point P , find the distance of point P from the point a .

Two batteries of emfs 2 V and 1 V of internal resistances 1Omega and 2Omega respectively are connected in parallel. The effective emf of the combination is

A circuit consists of three bateries of emf E_(1) = 1V, E_(2)=2V and E_(3)=3V and internal resistance 1Omega, 2Omega and 1Omega respectively which are connected in parallel as shown in figure. The potential difference between points P and Q is

A 6V battery of negligible internal resistance is connected across a uniform wire of length 1m . The positive terminal of another battery of emf 4V and internal resistance 1Omega is joined to the point A as shown in figure . The ammenter shows zero deflection when the jockey touches the wire at the point C. The AC is equal to

A 6V battery of negligible internal resistance is connected across a uniform wire of length 1m . The positive terminal of another battery of emf 4V and internal resistance 1Omega is joined to the point A as shown in figure. The ammeter shows zero deflection when the jockey touches the wire at the point C . The AC is equal to