In a microwave resistor the wall thickness is made as small as possible to have

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Question
In a microwave resistor the wall thickness is made as small as possible to
Options
A. have high value of R
B. have low value of R
C. minimize capacitive effect
D. reduce inductance

Correct Answer

minimize capacitive effect

Microwave Communication problems

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3. At a frequency equal to cutoff frequency in a rectangular wave guide
Options
A. the flow of electromagnetic energy is zero
B. the flow of electromagnetic energy is infinite
C. the flow of electromagnetic energy is 50% of maximum
D. the flow of electromagnetic energy is 10% of maximum

4. A directional coupler is used
Options
A. to transmit microwave signals
B. to generate microwave signals
C. to measure amplitude and phase of a travelling wave
D. both (a) and (b)

5. Consider the following statements about a magic tee
1. The collinear arms are isolated from each other.
2. On of the collinear arms is isolated from E arm.
3. On of the collinear arms is isolated from H arm.
4. E and H arms are isolated from each other.
Of the above statements
Options
A. 1 and 2 are correct
B. 1 and 3 are correct
C. 1 and 4 are correct
D. 2 and 3 are correct

8. In a klystron amplifier the transit time of electron passing the gap in the cavity should be
Options
A. less than one cycle
B. less than half cycle
C. less than quarter cycle
D. more than quarter cycle

9. Consider the following statements about hybrid ring
1. Ports 1 and 2 are decoupled.
2. Port 3 and 4 are coupled.
3. A signal entering either port 1 or 2 splits equally between ports 3 and 4.
4. A signal entering either port 3 or 4 splits equally between ports 1 and 2.
Which of the above are correct?
Options
A. 1, 2, 3 and 4
B. 1, 3 and 4
C. 1 and 2
D. 2, 3 and 4

10. Match the following:

List I List II

A. e^-t ? (t) 1.

B. 2. j? X(?)

C. 3.

D. 4.
Options
A. A-1, B-4, C-2, D-3
B. A-3, B-2, C-4, D-1
C. A-1, B-2, C-4, D-3
D. A-3, B-4, C-2, D-1

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