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Solution for Live Quiz Session: Electromagnetic Theory-03 Feb 2018
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Question 1
The depth of penetration of electromagnetic wave in a medium having conductivity at a frequency of 1 MHz is 25 cm. The depth of penetration at a frequency of 4 MHz will be
Question 2
If the electric field intensity associated with a uniform plane electromagnetic wave traveling in a perfect dielectric medium is given by
then the velocity of the traveling wave is
then the velocity of the traveling wave is
Question 3
The charge stored in the capacitor at t = 5 μs, will be
Question 4
The finite length of coaxial cable open at both ends having length L is many times more than radius b as the unsymmetrical conditions at two ends affects the solution. The coaxial capacitor and coaxial cable will appear frequently in the work.
Two conductors having 2 mm and 4 mm outer radius with length as 80 cm having a space among conductors with total charge on inner conductor as 50 nC. What will be the charged density of inner conductor?
Two conductors having 2 mm and 4 mm outer radius with length as 80 cm having a space among conductors with total charge on inner conductor as 50 nC. What will be the charged density of inner conductor?
Question 5
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?
Question 6
Two identical coils each having inductance L are placed together on the same core. If an overall inductance of αL is obtained by interconnecting these coils, the minimum value of α is ____________.
Question 7
A transmission line has a characteristic impedance of 50 Ω and a resistance of 0.1 Ω /m. if the line is distortion less, the attenuation constant (in Np/m) is
Question 8
A ball of radius R as 50cm has total charge of 36 mC that is uniformly distributed throughout its volume. What will be the magnitude of electric field at 0 cm?
Question 9
Consider the 3 m long lossless air-filled transmission line shown in the figure. It has a characteristic impedance of 120pW, is terminated by a short circuit, and is excited with a frequency of 37.5 MHz. What is the nature of the input impedance (Zin)?
Question 10
A rectangular metal wave–guide filled with a dielectric material of relative permittivity has the inside dimensions . The cut–off frequency for the dominant mode is
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ESE & GATE ECGeneralJun 19ESE & GATE EC