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The normalised load impedance of the transmission line 50 ohm with a load of 30 ohm is

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The normalised load impedance of the transmission line 50 ohm with a load of 30 ohm is

(a) 30

(b) 150

(c) 5/3

(d) 3/5

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The query is from Smith Chart topic in section Transmission Lines of Electromagnetic Theory

1 Answer

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Correct choice is (d) 3/5

Easiest explanation: The normalised impedance is calculated by dividing the impedance with the characteristic impedance. Given that the load impedance is 30 ohm, the normalised load impedance of the 50 ohm transmission line is 30/50 = 3/5 ohm.

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