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1
MHT CET 2025 23rd April Morning Shift
MCQ (Single Correct Answer)
+1
-0

In the case of common emitter transistor amplifier, the ratio of collector current to emitter current is 0.96 , then the current gain $(\beta)$ of the amplifier is

A
6
B
48
C
24
D
12
2
MHT CET 2025 22nd April Evening Shift
MCQ (Single Correct Answer)
+1
-0

In the logic circuit given, $\mathrm{A}, \mathrm{B}$ and C are the inputs and Y is the output. The output Y is HIGH

MHT CET 2025 22nd April Evening Shift Physics - Semiconductor Devices and Logic Gates Question 10 English
A
for all the HIGH inputs.
B
for all the LOW inputs.
C
when $\mathrm{A}=1, \mathrm{~B}=0, \mathrm{C}=0$
D
when $\mathrm{A}=1, \mathrm{~B}=0, \mathrm{C}=1$
3
MHT CET 2025 22nd April Evening Shift
MCQ (Single Correct Answer)
+1
-0

The graph given below represents I-V characteristics of zener diode. The part of the characteristics curve that is most relevant for its operation as a voltage regulator is

MHT CET 2025 22nd April Evening Shift Physics - Semiconductor Devices and Logic Gates Question 7 English
A
ab
B
bc
C
cd
D
de
4
MHT CET 2025 22nd April Evening Shift
MCQ (Single Correct Answer)
+1
-0

In n-type semiconductor, free electrons donated by the impurity atoms occupy energy levels in

A
the conduction band.
B
the valence band.
C
the band gap and are close to the conduction band.
D
the band gap and are close to the valence band.
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