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Electronics and Communication Engineering - Microwave Communication

Exercise : Microwave Communication - Section 5
11.
In a magnetron the magnetic flux density is of the order of
1 mWb/s
1 Wb/m2
106 m/s
1012 m/s
Answer: Option
Explanation:
No answer description is available. Let's discuss.
12.
For a directional coupler the power is in the ratio of
40 dB
30 dB
20 dB
10 dB
Answer: Option
Explanation:
No answer description is available. Let's discuss.
13.
As regards rectangular and circular waveguides
both have infinite set of TE and TM modes
rectangular waveguide has infinite TE and TM modes but not the circular waveguide
circular waveguide has infinite TE and TM modes but not the rectangular waveguide
none of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
14.
In a high frequency coaxial line and the length of line characteristic impedance is a function of
properties of insulating material only
inner and outer conductor radius only
both (a) and (b)
neither (a) nor (b)
Answer: Option
Explanation:
No answer description is available. Let's discuss.
15.

Assertion (A): In TE10 mode the cutoff frequency of rectangular waveguide is where a is the broad dimension and c is velocity of light.

Reason (R): TE10 mode is the dominant mode in rectangular waveguide.

Both A and R are correct and R is correct explanation of A
Both A and R are correct but R is not correct explanation of A
A is correct but R is wrong
A is wrong but R is correct
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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