For latice type attenuator shown in the given figure, the

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For latice type attenuator shown in the given figure, the characteristic impedance R₀ is

1. R₁ + R₂
  2
2. 2R₁ + R₂
  R₁ + R₂
3. √R₁ R₂
4. R₁ + R₂
  2

Correct Option: C

Characteristic impedance, R₀ = √R_sc R_oc

Since R_sc = 2	R₁ R₂	, R_oc =	R₁ R₂
	R₁ + R₂		2

∴ R₀ = √R₁ R₂