1
WB JEE 2021
MCQ (Single Correct Answer)
+1
-0.25
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WB JEE 2021 Physics - Electronic Devices Question 9 English
For the given logic circuit, the output Y for inputs (A = 0, B = 1) and (A = 0, B = 0) respectively are
A
0, 0
B
0, 1
C
1, 0
D
1, 1
2
WB JEE 2020
MCQ (Single Correct Answer)
+1
-0.25
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A common emitter transistor amplifier is connected with a load resistance of 6 k$$\Omega $$ . When a small AC signal of 15 mV is added to the base-emitter voltage, the alternating base current is 20$$\mu $$A and the alternating collector current is 1.8 mA. What is the voltage gain of the amplifier?
A
90
B
640
C
900
D
720
3
WB JEE 2020
MCQ (Single Correct Answer)
+1
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WB JEE 2020 Physics - Electronic Devices Question 18 English
In the circuit shown, the value of $$\beta $$ of the transistor is 48. If the supplied base current is 200 $$\mu $$A, what is the voltage at the terminal Y?
A
0.2 V
B
0.5 V
C
4 V
D
4.8 V
4
WB JEE 2019
MCQ (Single Correct Answer)
+1
-0.25
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In the circuit shown, what will be the current through the 6V zener?

WB JEE 2019 Physics - Electronic Devices Question 16 English
A
6 mA, from A to B
B
2 mA, from A to B
C
2 mA, from B to A
D
Zero
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