1
MHT CET 2023 10th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

Which one of the operations of $$\mathrm{n}-\mathrm{p}-\mathrm{n}$$ transistor differs from that of $$p-n-p$$ transistor?

A
The emitter-base junction is reversed biased in $$\mathrm{n}-\mathrm{p}-\mathrm{n}$$ transistor.
B
The emitter injects minority carriers into the base region of the $$\mathrm{p}-\mathrm{n}-\mathrm{p}$$ transistor.
C
The emitter injects holes into the base of the $$\mathrm{p}-\mathrm{n}-\mathrm{p}$$ transistor and electrons into the base region of $$n-p-n$$ transistor.
D
The emitter injects holes into the base of $$\mathrm{n}-\mathrm{p}-\mathrm{n}$$ transistor.
2
MHT CET 2023 10th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

For the diagram shown, the resistances between points A and B when ideal diode D is forward biased is '$$R_1$$' and that when reverse biased is '$$R_2$$'. The ratio $$R_1: R_2$$ is

MHT CET 2023 10th May Evening Shift Physics - Semiconductor Devices and Logic Gates Question 32 English

A
2 : 1
B
1 : 1
C
1 : 2
D
1 : 4
3
MHT CET 2023 10th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

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

MHT CET 2023 10th May Morning Shift Physics - Semiconductor Devices and Logic Gates Question 30 English

A
AND
B
NAND
C
OR
D
NOR
4
MHT CET 2023 10th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

In insulators

A
valence band is empty and conduction band is filled with electrons.
B
conduction band is empty and valence band is completely filled with electrons.
C
valence band is partially filled.
D
conduction band is partially filled with electrons.
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