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Electronics and Communication Engineering - Exam Questions Papers

Exercise : Exam Questions Papers - Exam Paper 16
16.
What can be the maximum dimension of an array in C language program?
3
4
5
It is compiler dependent
Answer: Option
Explanation:
No answer description is available. Let's discuss.
17.
Choose the correct statement
The reflection coefficient (r) of a transmission line is greater than 1
r varies from 0 to ∞
r is less than or equal to 1
r varies from - ∞ to + ∞
Answer: Option
Explanation:
No answer description is available. Let's discuss.
18.
Which of the following modes can exist in a rectangular waveguide?
TM10
TE10
TM00
TM01
Answer: Option
Explanation:
No answer description is available. Let's discuss.
19.
For plane wave propagating in free space or two conductor transmission line, what must be the relationship between the phase velocity vp , the group velocity vg and speed of light c?
vp > c > vg
vp < c < vg
vp = c = vg
vp < vg < c
Answer: Option
Explanation:
No answer description is available. Let's discuss.
20.
The silicon sample with unit cross-sectional area shown below is in thermal equilibrium. The following information is given: T = 300 K, electronic charge = 1.6 x 10-19C, thermal voltage = 26mV and electron mobility = 1350 cm2/V-s

The magnitude of the electric field at x = 0.5 μm is
1 kV/cm
5 kV/cm
10 kV/cm
26 kV/cm
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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