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Communication Systems - Engineering

Q1:

SWR for a transmission line is infinity when the load is
  1. Short circuit
  2. Complex impedance
  3. Open circuit
  4. Pure reactance
Of the above statements:

A 1, 3, 4 are correct

B 1 and 3 are correct

C 2, 3, 4 are correct

D 1, 2, 4 are correct

ANS:A - 1, 3, 4 are correct

SWR is infinite if |rv| = 1.