1
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.
2
MHT CET 2023 10th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

Identify the mismatch out of the following.

A
Zener diode - voltage regulator.
B
Photodiode-optocouplers.
C
Solar cell - Electrical energy into light.
D
Light emitting diode - optical communication.
3
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.
4
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
$$\beta$$
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