1
GATE ECE 2017 Set 2
Numerical
+2
-0
An electron (q1) is moving in free space with velocity 105 m/s towards a stationary electron
(q2) far away. The closest distance that this moving electron gets to the stationary electron
before the repulsive force diverts its path is ___________ ×10-8m.
[Given, mass of electron m = 9.11×10-31 kg, charge of electron e = -1.6×10-19 C , and permittivity $$\varepsilon_0=\left(1/36\mathrm\pi\right)\times10^{-9}\;\mathrm F/\mathrm m$$].
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2
GATE ECE 2017 Set 2
Numerical
+1
-0
A two wire transmission line terminates in a television set. The VSWR measured on the line is 5.8. The percentage of power that is reflected from the television set is
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3
GATE ECE 2017 Set 2
MCQ (Single Correct Answer)
+2
-0.6
Standard air filled rectangular waveguides of dimensions a = 2.29cm and b = 1.02cm are designed for radar applications. It is desired that these waveguides operate only in the dominant $$T{E_{10}}$$ mode with the operating frequency at least 25% above the cut-off frequency of the $$T{E_{10}}$$ mode but not higher than 95% of the next higher cutoff frequency. The range of the allowable operating frequency f is
4
GATE ECE 2017 Set 2
Numerical
+2
-0
The permittivity of water at optical frequencies is $$1.75{\varepsilon _0}$$. It is found that an isotropic light source at a distance d under water forms an illuminated circular area of radius $$5m$$, as shown in the figure. The critical angle is $${\theta _c}$$
![GATE ECE 2017 Set 2 Electromagnetics - Miscellaneous Question 1 English](https://imagex.cdn.examgoal.net/PQkSr7EihXrSry5HM/NCN7I260UhcC3tiyZKIRJNeLjmomk/QfWhGrXRtPDqQr0xXlgQvj/uploadfile.jpg)
The value of $$d$$ (in meter) is ______ .
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Paper analysis
Total Questions
Analog Circuits
3
Communications
6
Control Systems
6
Digital Circuits
5
Electromagnetics
5
Electronic Devices and VLSI
9
Engineering Mathematics
9
Network Theory
4
Signals and Systems
6
General Aptitude
10
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