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Solved Problems-13

Problems-13
The h-parameters of a two-port network shown in figure are Description: Description: 6615.png h21 = 100, Description: Description: 6652.pngmho. Find V2 and z-parameters of the network if Description: Description: 6662.png.
 
Description: Description: 3351.png
 
Solution
The h-parameter equations are,
 
V1 = h11I1 + h12V2 = 1000I1 + 0.003V2 (i)
 
I2 = h21I1 + h22V2 = 100I1 + 50 ∞ 10–6V2 (ii)
 
By KVL for the two meshes,
 
V1 = Vs – 500I1 (iii)
 
V2 = – 200I2 (iv)
 
From (i) and (iii),
 
Vs – 500I1 = 1000I1 + 0.003V2
 
or, 10–2 – 1500I1 = 0.003V2 (v)
 
From (ii) and (iv),
 
Description: Description: 6678.png
 
or, Description: Description: 6684.png(vi)
 
From (v) and (i),
 
Description: Description: 6690.png 
⇒ 
 
The z-parameters are calculated as follows.
 
Description: Description: 6705.png
 




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