1
GATE ECE 2023
MCQ (More than One Correct Answer)
+2
-0

The following circuit(s) representing a lumped element equivalent of an infinitesimal sectioin of a transmission line is/are

A
GATE ECE 2023 Electromagnetics - Transmission Lines Question 5 English Option 1
B
GATE ECE 2023 Electromagnetics - Transmission Lines Question 5 English Option 2
C
GATE ECE 2023 Electromagnetics - Transmission Lines Question 5 English Option 3
D
GATE ECE 2023 Electromagnetics - Transmission Lines Question 5 English Option 4
2
GATE ECE 2023
Numerical
+2
-0

A transparent dielectric coating is applied to glass ($$\varepsilon _r=4,\mu_r=1$$) to eliminate the reflection of red light ($$\lambda_0=0.75~\mu\mathrm{m}$$). The minimum thickness of the dielectric coating, in $$\mu\mathrm{m}$$, that can be used is __________ (rounded off to two decimal places).

Your input ____
3
GATE ECE 2023
MCQ (Single Correct Answer)
+1
-0.33

In a semiconductor, if the Fermi energy level lies in the conduction band, then the semiconductor is known as

A
degenerate n-type.
B
degenerate p-type.
C
non-degenerate n-type.
D
non-degenerate p-type.
4
GATE ECE 2023
MCQ (Single Correct Answer)
+1
-0.33

For an intrinsic semiconductor at temperature $$T=0K$$, which of the following statement is true?

A
All energy states in the valence band are filled with electrons and all energy states in the conduction band are empty of electrons.
B
All energy states in the valence band are empty of electrons and all energy states in the conduction band are filled with electrons.
C
All energy states in the valence and conduction band are filled with holes.
D
All energy states in the valence and conduction band are filled with electrons.
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