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1
MHT CET 2025 19th April Morning Shift
MCQ (Single Correct Answer)
+1
-0
In the case of constant ' $\alpha$ ' and ' $\beta$ ' of a transistor ( $\alpha$ and $\beta$ are current ratios)
A
$\beta<1, \alpha>1$
B
$\beta>1, \alpha<1$
C
$\alpha=\beta$
D
$\alpha=\beta^2$
2
MHT CET 2024 16th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

To get the truth table shown from the following logic circuit, the logic gate G should be

MHT CET 2024 16th May Evening Shift Physics - Semiconductor Devices and Logic Gates Question 13 English

A
AND
B
OR
C
NAND
D
NOR
3
MHT CET 2024 16th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

The Boolean expression for the given combination of logic gates is

MHT CET 2024 16th May Evening Shift Physics - Semiconductor Devices and Logic Gates Question 14 English

A
$\mathrm{Y}=(\overline{\mathrm{A}} \cdot \mathrm{B})+\mathrm{C}$
B
$\mathrm{Y}=(\overline{\mathrm{A}}+\mathrm{B}) \cdot \mathrm{C}$
C
$\mathrm{Y}=\overline{\mathrm{A}}+(\mathrm{B} \cdot \mathrm{C})$
D
$\mathrm{Y}=\overline{\mathrm{A}} \cdot(\mathrm{B}+\mathrm{C})$
4
MHT CET 2024 16th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

When a small amount of impurity atoms are added to semiconductor, then generally its resistivity

A
may increase or decrease depending upon the percentage of doping.
B
increases.
C
decreases.
D
does not change.
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