A generator is feeding power to a transmission line of characteristic impedance

CuriousTab

CuriousTab

Home Aptitude

Discussion

Home ‣ Electronics and Communication Engineering ‣ Communication Systems Comments

Question
A generator is feeding power to a transmission line of characteristic impedance Z₀. The line is terminated in impedance Z_L. Standing waves will be set up if
Options
A. Z_L = Z₀
B. Z_L < Z₀
C. Z_L > Z₀
D. both (b) and (c)

Correct Answer

both (b) and (c)

Explanation

Both the case, i.e., Z_L > Z₀ and Z_L < Z₀ give rise to standing waves.

Communication Systems problems

Search Results

1. A woofer should be fed from the input through a
Options
A. low pass filter
B. high pass filter
C. band pass filter
D. band stop filter

3. A modem is classified as low speed if data rate handled is
Options
A. upto 100 bps
B. upto 250 bps
C. upto 400 bps
D. upto 600 bps

5. The velocity of sound waves in air
Options
A. is constant at all temperatures
B. varies directly as temperature
C. varies inversely as absolute temperature
D. varies directly as square root of absolute temperature

8. Tracking of extra terrestrial objects requires
Options
A. high transmitting power
B. very sensitive receiver
C. fully steerable antenna
D. all of the above

9. A 1000 kHz carrier is simultaneously modulated with 300 Hz, 800 Hz and 2 kHz audio sine waves. Which of the following frequency is least likely to be present in the output?
Options
A. 1002 kHz
B. 1000 kHz
C. 999.2 kHz
D. 998.0 kHz

10. If C is capacity of noisy channel, (bits/s), ?f is bandwidth Hz and S/N is signal to noise ratio, then
Options
A.
B.
C.
D.

Comments

There are no comments.

More in Electronics and Communication Engineering: