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The incident and the reflected voltage are given by 15 and 5 respectively. The transmission coefficient is(a) 1/3(b) 2/3(c) 1(d) 3I got this question in unit test.This intriguing question originated from Power, Power Loss and Return Loss in chapter EM Wave Propagation of Electromagnetic Theory

Answer»

Right answer is (B) 2/3

For explanation I WOULD SAY: The ratio of the reflected to the incident voltage is the REFLECTION COEFFICIENT. It is given by R = 5/15 = 1/3. To get the transmission coefficient, T = 1 – R = 1 – 1/3 = 2/3.



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