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If there is no standing wave on a transmission line, then the value of SWR is:

If there is no standing wave on a transmission line, then the value of SWR is: Correct Answer 1

When there are no standing waves in the transmission line, the reflection co-efficient is zero and hence input impedance of the transmission line is equal to the characteristic impedance of the line. Hence the relation between SWR and reflection co-efficient yields SWR as 1.

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