1
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
2
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
$9: 5$
3
TS EAMCET 2023 (Online) 12th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

When a semiconductor is doped with donor impurity

A
the hole concentration decreases and electron concentration increases
B
the hole concentration increases and electron concentration decreases
C
both hole concentration and electron concentration increase
D
both hole concentration and electron concentration decrease
4
TS EAMCET 2023 (Online) 12th May Morning Shift
MCQ (Single Correct Answer)
+1
-0
In a transistor, the base current is $10 \mu \mathrm{~A}$ and the emitter current is 1 mA , then the collector current is
A
$990 \mu \mathrm{~A}$
B
$100 \mu \mathrm{~A}$
C
$1010 \mu \mathrm{~A}$
D
$90 \mu \mathrm{~A}$
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