1
MHT CET 2021 23th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

In common emitter amplifier, a change of 0.2 mA in the base current causes a change of 5 mA in the collector current. If input resistance is 2 k$$\Omega$$ and voltage gain is 75, the load resistance used in the circuit is

A
8 k$$\Omega$$
B
4 k$$\Omega$$
C
12 k$$\Omega$$
D
6 k$$\Omega$$
2
MHT CET 2021 22th September Evening Shift
MCQ (Single Correct Answer)
+1
-0

Which of the following gates will give an output '1' for the given inputs?

MHT CET 2021 22th September Evening Shift Physics - Semiconductor Devices and Logic Gates Question 70 English

A
II and III
B
I and IV
C
I and III
D
II and IV
3
MHT CET 2021 22th September Evening Shift
MCQ (Single Correct Answer)
+1
-0

For a common-emitter amplifier, the voltage gain is 40. Its input and output impedances are $$100 \Omega$$ and $$400 \Omega$$, respectively. The power gain of the CE amplifier will be

A
450
B
400
C
300
D
500
4
MHT CET 2021 22th September Evening Shift
MCQ (Single Correct Answer)
+1
-0

Choose the correct statement. In semiconductors valance band and conduction band

A
is separated by large energy gap.
B
is separated by small energy gap:
C
is almost empty.
D
overlap each other.
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