Six wires each of resistance r form a tetrahedron. The equivalent resistance between corners 1-2 and 1-3 are respectively

Six wires. Each of resistancde r. are connected so as to form a tetrahedron. The equivalent resistance of the combination when current enters through one corner and leaves through some corner is

Twelve equal wires each of resistance r Omega form a cube. The effective resistance between the corners of the same edge of the cube is

Each resistance of the circuit shown in figure is r. The equivalent resistance between A and B is

Each resistance of the circuit shown in figure is r. The equivalent resistance between A and B is

If each of the resistance in the network in figure R , the equivalent resistance between terminals A and B is

In the network shown, each resistance is R. Calculate the equivalent resistance between A and B.

If each of the resistance in the network in figure R , the equivalent resistance between terminals A and B is

If each of the resistance in the network in figure R , the equivalent resistance between terminals A and B is