1.Expain about the electric field boundary conditions
between dielectric and conductor?
2. a)Explain about the parameters
of Transmission line ?
b).Explain about Transmission line equation
and its parameters?
3.Expain about Low loss radio
frequency lines and UHF Transmission lines?
1. For a dielectric, the condition to be satisfied is
a) σ/ωε > 1
b) σ/ωε < 1
c) σ = ωε
d) ωε = 1
2. For a perfect dielectric, which parameter will
be zero?
a) Conductivity
b) Frequency
c) Permittivity
d) Permeability
3.
Calculate
the phase constant of a wave with frequency 12 rad/s and velocity 3×108 m/s(in 10-8 order)
a) 0.5
b) 72
c) 4
d) 36
4.
For a lossless
dielectric, the attenuation will be
a) 1
b) 0
c) -1
d) Infinity
5.
Calculate the
velocity of a wave with frequency 2 x109 rad/s and phase constant of 4 x 108 units.
a) 0.5
b) 5
c) 0.2
d) 2
6.
Which of
the following is the correct relation between wavelength and the phase constant
of a wave?
a) Phase constant = 2π/wavelength
b) Phase constant = 2π x wavelength
c) Phase constant = 1/(2π x wavelength)
d) Phase constant = wavelength/2π
7.
In lossy
dielectric, the phase difference between the electric field E and the magnetic
field H is
a) 90
b) 60
c) 45
d) 0
8.
Skin depth
phenomenon is found in which materials?
a) Insulators
b) Dielectrics
c) Conductors
d) Semiconductors
9.
Identify which
of the following is not a transmission line?
a) Telephone lines
b) Power transmission
c) Underground cables
d) Cavity resonators
10.
The open wire
transmission line consists of
a) Conductor
b) Dielectric
c) Both conductor and dielectric
d) Either conductor or dielectric
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