1
GATE ECE 1997
Subjective
+5
-0
A sequence generator is shown in figure. The counter status (Q0 Q1 Q3) is intialized to 010 using preset/clear inputs.
The Clock has a period of 50ns and transitions take place at the rising clock edge.
(a) Give the sequence generated at Q0 till it repeats.
(b) What is the repetition rate for the generated sequence?
2
GATE ECE 1997
+1
-0.3
A transmission line of 50$$\Omega$$ characteristic impedance is terminated with a 100 $$\Omega$$ resistance. The minimum impedance measured on the line is equal to
A
0 $$\Omega$$
B
25 $$\Omega$$
C
50 $$\Omega$$
D
100 $$\Omega$$
3
GATE ECE 1997
Subjective
+5
-0
A $${\lambda \over 2}$$ section of a 600 $$\Omega$$ transmission line, short ciruited at one end and open circuited at the other end, is shown in Fig. A 100 V / 75 $$\Omega$$ generator is connected at the mid point of the section as shown in the Fig. Find the voltage at the open-ciruited end of the line.
4
GATE ECE 1997
Subjective
+5
-0
A uniform plane wave is normally incident from air on an infinitely thick magnetic material with relative permeability 100 and relative permittivity 4 (sec in Fig.). The wave has an electric field of 1 V/meter (rms). Find the average Poynting vector inside the material.
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