# Solved Problems-13

Problems-13

The

*h*-parameters of a two-port network shown in figure are*h*_{21}**=**100, mho. Find*V*_{2}and*z*-parameters of the network if .Solution

The

*h*-parameter equations are,*V*

_{1}=

*h*

_{11}

*I*

_{1}+

*h*

_{12}

*V*

_{2}= 1000

*I*

_{1}+ 0.003

*V*

_{2}(i)

*I*

_{2}=

*h*

_{21}

*I*

_{1}+

*h*

_{22}

*V*

_{2}= 100

*I*

_{1}+ 50 âˆž 10

^{â€“6}

*V*

_{2}(ii)

By KVL for the two meshes,

*V*

_{1}=

*V*â€“ 500

_{s}*I*

_{1}(iii)

*V*

_{2}= â€“ 200

*I*

_{2}(iv)

From (i) and (iii),

*V*â€“ 500

_{s}*I*

_{1}= 1000

*I*

_{1}+ 0.003

*V*

_{2}

or, 10

^{â€“2}â€“ 1500*I*_{1}= 0.003*V*_{2}(v)From (ii) and (iv),

or, (vi)

From (v) and (i),

â‡’

The

*z*-parameters are calculated as follows.