1
TG EAPCET 2024 (Online) 9th May Evening Shift
MCQ (Single Correct Answer)
+1
-0
Two logic gates are connected as shown in the figure. If the inputs are $A=1$ and $B=0$, then the values of $Y_1$ and $Y_2$ respectively are TG EAPCET 2024 (Online) 9th May Evening Shift Physics - Semiconductor Devices and Logic Gates Question 12 English
A
1,1
B
1,0
C
0,1
D
0,0
2
TG EAPCET 2024 (Online) 9th May Morning Shift
MCQ (Single Correct Answer)
+1
-0
The concentration of electrons in an intrinsic semiconductor is $6 \times 10^{15} \mathrm{~m}^{-3}$. On doping with an impurity, the electron concentration increases to $4 \times 10^{22} \mathrm{~m}^{-3}$. In thermal equilibrium, the concentration of the holes in the doped semiconductor is
A
$18 \times 10^{-8} \mathrm{~m}^{-3}$
B
$1.5 \times 10^{-7} \mathrm{~m}^{-3}$
C
$9 \times 10^8 \mathrm{~m}^{-3}$
D
$\frac{2}{3} \times 10^7 \mathrm{~m}^{-3}$
3
TG EAPCET 2024 (Online) 9th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

Three logic gates are connected as shown in the figure. If the inputs are $A=1$ and $B=1$, then the values of $Y_1$ and $Y_2$ respectively are

TG EAPCET 2024 (Online) 9th May Morning Shift Physics - Semiconductor Devices and Logic Gates Question 13 English
A
0,0
B
0,1
C
1,0
D
1,1
4
TS EAMCET 2023 (Online) 12th May Evening Shift
MCQ (Single Correct Answer)
+1
-0
If the ratio of electron and hole currents in a semiconductor is $7 / 4$ and the ratio of drift velocities of electrons and holes is $5 / 4$, then ratio of concentrations of electrons and holes will be
A
$5: 7$
B
$7: 5$
C
$5: 9$
D
$9: 5$
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