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An impedance match is desired at the 1 – 1 port of the two-port network shown in the given figure. The match will be obtained when zg equals
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- z1 + z3
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z1 + z3(z2 + zL) 2
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z1(z2 + z3) z1 + z2 + z3
- none of these
- z1 + z3
Correct Option: B
Equivalent resistance looking right through terminal 11',
| Zeq = | + Z1 | |
| Z2 + Z3 + ZL |
For impedance matching,
Zeq= Zg
