Q1:

A parallel plate lossless transmission line consists of brass strips of width W and separated by a distance d. If both w and d are doubled then its characteristics impedance will

Q2:

A transmission line has a characteristic impedance of 50$\Omega$and a resistance of 0.1$\Omega$/m. If the line is distortion less, the attenuation constant (in Np/m) is

Q3:

A lossless transmission line of length 50cm with L = 10µH/m, C = 40 pF/m is operated at 30 MHz. What is its electric length$\left(\beta l\right)$?

Q4:

In the relation $S=\frac{1+\left|\gamma \right|}{1-\left|\gamma \right|};$the values of S and $\gamma$, respectively, vary as

Q5:

A transmission line operating at a frequency $6x{10}^{8}rad/s$has parameters

$R^{\text{'}}=0.2k\Omega /m,L^{\text{'}}=4\mu H/m,G^{\text{'}}=8\mu s/m,C^{\text{'}}=4pF/m.$

The propagation constant, $\gamma$ will be:

Q6:

At an operating frequency of 500Hz, length of a transmission line is given by $l=\raisebox{1ex}{$\lambda $}\!\left/ \!\raisebox{-1ex}{$4$}\right.$. For the same transmission line the length at 1KHz will be given by

Q7:

The space between the strips of a parallel plate transmission line is filled of a dielectric of permittivity, ${\epsilon }_r=1.3$ and conductivity $\sigma =0,$ If the width of the strips is 9.6cm and the separation between them is 0.6cm and the parameters G^’ and C^’ will be respectively:

Q8:

The depth of penetration of electromagnetic wave in a medium having conduety $\sigma$at a frequency of 1 MHz in 25cm. the depth of penetration at a frequency of 4MHz will be

Q9:

A transmission line is operating at wavelength $`\lambda `.$If the distance between successive voltage minimum is 10cm and distance between load and first voltage minimum is 7.5cm. Then the distance between load and first voltage maxima is

Q10:

A lossless transmission line operating at 4.5 GHz has L = 2.6 µH/m and Z₀ = 80$\Omega$The phase constant $\beta$and phase velocity $\overrightarrow{V}$is

Q11:

For a short circuit coaxial transmission line characteristic impedance $Z_0=35+j49\Omega$propagation constant$\gamma =1.4+j5m^{-1}$, length of line l = 0.4m. The input impedance of short circuit line is

Q12:

If reflection coefficient for voltage be 0.6, the voltage standing wave ratio (VSWR) is

Q13:

If the maximum and minimum voltage on a transmission line are 4V and 2V, respectively for a typical load, VSWR is

Q14:

When a lossless transmission line is terminated by a resistance equal to surge impedance then what is value of the reflection coefficient?

Q15:

A lossless transmission line operating at 4.5 GHz has L=2.6 $\mu H/m$and $Z_0=80\Omega .$The phase constant $\beta$and phase velocity $\overrightarrow{V}$is