Twelve resistors of equal value R are connected in the form of a cube. Effective resistance between diagonals of the cube is

The angle between two diagonals of a cube is

The angle between two diagonals of a cube is

Twelve wires of equal resistacne R are connected to form a cube . The effective resistance between two diagonal ends A and E will be .

Four resistors of 100 Omega each are connected in the form of a square. Then the effective resistance along the diagonal point is

Twelve wires, each of resistance 6Omega are connected to form a cube. The effective resistance between two diagonally opposite corners of the cube is