1
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 3 English

A
AND gate
B
OR gate
C
NAND gate
D
NOR gate
2
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
3
MHT CET 2023 14th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

When the conductivity of a semiconductor is only due to the breaking of the covalent bonds, the semiconductor is called

A
donor
B
intrinsic
C
acceptor
D
extrinsic
4
MHT CET 2023 14th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

For a common emitter configuration, if '$$\alpha$$' and '$$\beta$$' have their usual meanings, the incorrect relation between '$$\alpha$$' and '$$\beta$$' is

A
$$\frac{1}{\alpha}=\frac{1}{\beta}+1$$
B
$$\alpha=\frac{\beta}{1-\beta}$$
C
$$\alpha=\frac{\beta}{1+\beta}$$
D
$$\frac{1}{\beta}=\frac{1}{\alpha}-1$$
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