1
MHT CET 2023 9th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

In the reverse biasing of a p-n junction diode :

A
the width of the depletion layer decreases.
B
the width of the depletion layer increases.
C
the number of minority charge carriers increase.
D
the number of majority charge carriers increase.
2
MHT CET 2023 9th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

In a transistor, in common emitter configuration, the ratio of power gain to voltage gain is

A
$$\alpha$$
B
$$\frac{\beta}{\alpha}$$
C
$$\beta \alpha$$
D
$$\beta$$
3
MHT CET 2023 9th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

If the frequency of the input voltage is $$50 \mathrm{~Hz}$$, applied to a (a) half wave rectifier and (b) full wave rectifier. The output frequency in both cases is respectively

A
$$50 \mathrm{~Hz}, 50 \mathrm{~Hz}$$
B
$$50 \mathrm{~Hz}, 100 \mathrm{~Hz}$$
C
$$100 \mathrm{~Hz}, 100 \mathrm{~Hz}$$
D
$$100 \mathrm{~Hz}, 50 \mathrm{~Hz}$$
4
MHT CET 2023 9th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

For an intrinsic semiconductor $$\left(\mathrm{n}_{\mathrm{h}}\right.$$ and $$\mathrm{n}_{\mathrm{e}}$$ are the number of holes per unit volume and number of electrons per unit volume respectively)

A
$$\mathrm{n}_{\mathrm{h}} < \mathrm{n}_{\mathrm{e}}$$
B
$$\mathrm{n}_{\mathrm{h}}=\mathrm{n}_{\mathrm{e}}$$
C
$$\mathrm{n}_{\mathrm{h}}=\frac{\mathrm{n}_{\mathrm{c}}}{2}$$
D
$$\mathrm{n}_{\mathrm{h}}>\mathrm{n}_{\mathrm{e}}$$
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