1
MHT CET 2024 2nd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

The logic circuit in figure is equivalent to

MHT CET 2024 2nd May Morning Shift Physics - Semiconductor Devices and Logic Gates Question 56 English

A
OR gate
B
AND gate
C
NOR gate
D
NAND gate
2
MHT CET 2024 2nd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

In an NPN transistor $10^{10}$ electrons enter the emitter in $10^{-6} \mathrm{~s}$ and $2 \%$ electrons recombine with holes in base. The current ratios ' $\alpha$ ' and ' $\beta$ ' of a transistor are respectively (nearly)

A
$0.98,49$
B
$49,0.98$
C
$0.49,98$
D
$98,0.49$
3
MHT CET 2023 14th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

The output of following combination is same as that of

MHT CET 2023 14th May Evening Shift Physics - Semiconductor Devices and Logic Gates Question 90 English

A
AND gate
B
OR gate
C
NAND gate
D
NOR gate
4
MHT CET 2023 14th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

In an n-p-n transistor, the collector current is $$28 \mathrm{~mA}$$. If $$80 \%$$ of electrons reach the collector, its base current in $$\mathrm{mA}$$ is

A
35
B
24
C
14
D
7
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