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GATE 2019: Electromagnetics Quiz 8
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Question 1
An air-filled rectangular waveguide has inside dimensions 1 cm × 0.5 cm. The cut-off wavelength for TE01 mode is _______ cm.
Question 2
A TEM wave is incident normally upon a perfect conductor. The E and H fields at the boundary will be, respectively.
Question 3
Let are off wavelength of andmodes of an air filled rectangular wave guide with dimension 2.5 .The relation among the wavelengths is given by
Question 4
An air filled rectangular waveguide with inside dimensions 2 x 1 cm is excited with a source of 7 GHz. If the waveguide is operating in dominant mode, then phase constant inside the waveguide is given by_______ (rad/m)
Question 5
A 8cm x 4 cm guide is made of a material with σ=0, The propagation constant for and mode at
Question 6
The modes in a rectangular waveguide are denoted by TEmn/TMmn where m and n are the eigen numbers along the larger and smaller dimensions of the waveguide respectively. Which one of the following statements is TRUE?
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