Download Aptitude Crack
img not found img not found

Electromagnetic Field Theory - Engineering

Q1:

Characteristic impedance of a transmission line is 50 Ω. Input impedance of the open circuited line.
Zoc = 100 + J150 Ω. When transmission line is short circuited, then value of the input impedance will be

A 50 Ω

B 100 + J150 Ω

C 7.69 + J11.54Ω

D 7.69 - J11.54 Ω

ANS:D - 7.69 - J11.54 Ω

ZC = ZOC - ZSC 50 = (100 + j150)(ZSC) .