Which of the following networks in the equivalent of the

Which of the following networks in the equivalent of the circuit shown in figure?

This can be solved by using Star to Delta transformation.

R₁₂ =	R₁R₂ + R₂R₃ + R₃R₁
	R₃

=	J1 × -J1 + (-J1) + (-J1)× (J1)
	-J1

=	J² + J²- J²	= +J
	-J

R₂₃ =	R₁R₂ + R₂R₃ + R₃R₁	=	-J²	= -J
	R₁		J

R₃₁ =	R₁R₂ + R₂R₃ + R₃R₁	=	-J²	= J
	R₂		J