Y parameters of a four terminal block are 42A single element

Y parameters of a four terminal block are 4 2 A single element of 1 ohm
1 1

is connected across as shown in the given figure. The new Y parameters will be

Y parameter of two networks in parallel are sums of the corresponding Y-parameters.

As Y₁ =		1			-1
As Y₁ =		-1			1

Y₂ =		4			2
Y₂ =		1			1

∴ Y = Y₁ + Y₂ =		5			1
∴ Y = Y₁ + Y₂ =		0			2

Y parameters of a four terminal block are		4			2		A single element of 1 ohm
		1			1