1
GATE ECE 1996
MCQ (Single Correct Answer)
+1
-0.3
The capacitance per unit length and the characteristic impedance of a lossless transmission line are C and $$Z_0$$ respectively. The velocity of a traveling wave on the transmission line is
A
$${Z_0}C$$
B
$${1 \over {{Z_0}C}}$$
C
$${{{Z_0}} \over C}$$
D
$${C \over {{Z_0}}}$$
2
GATE ECE 1996
MCQ (Single Correct Answer)
+2
-0.6
A uniform plane wave in air is normally incident on an infinitely thick slab. If the reflective index of the glass slab is 1.5, then the percentage of the incident power that is reflected from the air-glass interface is
A
0%
B
4%
C
20%
D
100%
3
GATE ECE 1996
MCQ (Single Correct Answer)
+2
-0.6
Some unknown material has a conductivity of $${10^{ 6}}$$ $$mho/m$$ and a permeability of $$4\pi \times {10^{ - 7}}\,\,\,\,\,H/m.$$ The skin depth for the material at $$1GHz$$ is
A
$$15.9\,\,\,\mu m$$
B
$$20.9\,\,\,\mu m$$
C
$$25.9\,\,\,\mu m$$
D
$$30.9\,\,\,\mu m$$
4
GATE ECE 1996
MCQ (Single Correct Answer)
+1
-0.3
A metal sphere with 1 m radius and a surface charge density of 10 Coulombs/m2 is enclosed in a cube of 10 m side. The total outward electric displacement normal to the surface of the cube is
A
40$$\pi $$ Coulombs
B
10$$\pi $$ Coulombs
C
5$$\pi $$ Coulombs
D
None of the above
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