Question
Download Solution PDFIf a Two port Network “A” is cascaded with another two port Network B, then which of the following is true.
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFThe correct option is 3
Concept:
Two-port network parameters such as Z, Y, h, and T (ABCD) describe the relationship between voltages and currents at the input and output ports of a network. When two such networks are cascaded, their parameters combine in specific ways depending on the type of parameter used.
Calculation:
When two two-port networks A and B are cascaded:
- Impedance [Z] parameters cannot be directly multiplied. They are added when connected in series, not cascaded.
- Admittance [Y] parameters are added for parallel connection, not cascade.
- Hybrid [h] parameters cannot be used directly for cascading either.
- Transmission (ABCD) [T] parameters are specifically designed for cascade connection. When two networks are cascaded, the overall transmission matrix is the product of individual matrices:
[T] = [TA] × [TB]
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