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phase velocity

GATE Electronics & Communication · Electromagnetic Theory - Wave Propagation · 1988-2023

17
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4
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15
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2023 Q20

Consider a narrow band signal, propagating in a lossless dielectric medium ($\epsilon_r = 4, \mu_r = 1$), with phase velocity $v_p$ and group velocity $v_g$. Which of the following...

medium
2023 PYQ

Consider a narrow band signal, propagating in a lossless dielectric medium $$(\varepsilon_r=4,\mu_r=1)$$, with phase velocity $$v_p$$ and group velocity $$v_g$$. Which of the follo...

easyanswer keyelite explanation
2021 PYQ

A standard air-filled rectangular waveguide with dimensions $a=8 \mathrm{~cm}, b=4 \mathrm{~cm}$, operates at 3.4 GHz . For the dominant mode of wave propagation, the phase velocit...

mediumbasic explanation
2019 Q37

The dispersion equation of a waveguide, which relates the wavenumber k to the frequency $\omega$, is $k(\omega) = (1/c)\sqrt{\omega^2 - \omega_0^2}$ where the speed of light $c = 3...

medium
2016 PYQ

Let the electric field vector of a plane electromagnetic wave propagating in a homogenous medium be expressed as $$E = \widehat x{E_x}\,{e^{ - j\left( {wt - \beta z} \right)}},$$ ,...

mediumanswer keyelite explanation
2011 PYQ

A transmission line of characteristic impedance 50 $$\Omega $$ is terminated by a 50 $$\Omega $$ load. When excited by a sinusoidal voltage source at 10 GHz, the phase difference b...

mediumanswer keyelite explanation
2005 PYQ

The magnetic field intensity vector of a plane wave is given by $$\overline H \left( {x,y,z,t} \right) = 10\,\sin \left( {50000t + 0.004x + 30} \right){\mathop a\limits^ \cap _y}$$...

easyanswer keyelite explanation
2004 PYQ

The phase velocity of an electromagnetic wave propagating in a hollow metallic rectangular waveguide in the $$T{E_{10}}$$ mode is

easyanswer key
2003 PYQ

If the electric field intensity associated with a uniform plane electromagnetic wave traveling in a perfect dielectric medium is given by $$E\left( {z,\,t} \right) = \,10\,\cos \le...

easyanswer key
2002 PYQ

The phase velocity for the $$T{E_{10}}$$ mode in an air-filled rectangular waveguide is

easyanswer key
2001 PYQ

The phase velocity of waves propagating in a hollow metal waveguide is

easyanswer key
1998 PYQ

The electric field vector of a wave is given as $$$\vec E = {E_0}{\mkern 1mu} {e^{j\left( {\omega t + 3x - 4y} \right)}}{\mkern 1mu} {{8{{\vec a}_x} + 6{{\vec a}_y} + 5{{\vec a}_z}...

medium
1996 PYQ

In an air-filled rectangular waveguide, the vector electric field is given by $$\mathop E\limits^ \to = \cos \,(20\,\pi \,y)\,\exp \,\,\left[ { - j\left( {{{40\,\,\pi } \over 3}} \...

hard
1991 PYQ

A uniform plane electromagnetic wave traveling in free-space enters into a lossless medium at normal incidence. In the medium its velocity reduces by 50% and in free space sets up...

medium
1990 PYQ

Choose the correct statements. For a wave propagating in an air filled rectangular wave guide

mediumanswer key
1990 PYQ

A 300 MHz plane E.M. wave is propagating in free space. The wave is incident normally on an infinite copper slab. For the transmitted wave in the copper slab, calculate the followi...

medium
1988 PYQ

For a normal mode EM wave propagating in a hollow rectangular wave guide

mediumanswer key