A line of length less than and open circuited at far end behaves as inductance L

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Question
A line of length less than and open circuited at far end behaves as
Options
A. inductance L
B. capacitance C
C. L and C in series
D. L and C in parallel

Correct Answer

capacitance C

Microwave Communication problems

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1. Consider the following statements
1. Fading of signals is generally greatest near radio horizon.
2. Fading of signals is generally greatest in shadow zone.
3. Fading is small when a good optical path is present.
Which of the above statements are correct?
Options
A. 1, 2 and 3
B. 1 and 2 only
C. 1 and 3 only
D. 2 and 3 only

3. Compared to coaxial lines, the advantages of wave guides are
Options
A. higher power handling capacity
B. lower loss per unit length
C. cheaper and simple mechanical structure
D. all of the above

4. Consider the following statements, SWR of a transmission line is infinite when the load is
1. a short circuit
2. a complex impedance
3. an open circuit
4. a pure reactance
Which of the above statements are correct?
Options
A. 1 and 3 only
B. 1, 2, 3
C. 2, 3, 4
D. 1, 2, 4

5. Dielectric constant and conductivity of rocky soil and flat sandy soil are around
Options
A. 10 and 20 mho/cm respectively
B. 20 and 10 mho/cm respectively
C. 2 and 5 mho/cm respectively
D. 0.5 and 2 mho/cm respectively

9. A TEM wave is incident normally on a perfect conductor. The E and H fields at boundary will respectively be
Options
A. minimum and maximum
B. minimum and minimum
C. maximum and minimum
D. maximum and maximum

10. As compared to LED, LASER has
1. higher emission efficiency
2. no tuning arrangement
3. narrow spectral width
4. provision for confinement
Of these statements
Options
A. 1, 2, 3 are correct
B. 1, 2, 4 are correct
C. 1 and 3 are correct
D. 1, 3, 4 are correct

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