1
GATE ECE 1997
MCQ (Single Correct Answer)
+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 $$\Omega $$
2
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. GATE ECE 1997 Electromagnetics - Transmission Lines Question 5 English
3
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. GATE ECE 1997 Electromagnetics - Uniform Plane Waves Question 10 English
4
GATE ECE 1997
MCQ (Single Correct Answer)
+1
-0.3
A rectangular air-filled waveguide has a cross section of $$4\,cm\,\, \times \,\,10cm$$. The minimum frequency which can propagate in the waveguide is
A
1.5 GHz
B
2.0 GHz
C
2.5 GHz
D
3.0 GHz
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