WB JEE 2021 | Electronic Devices Question 10 | Physics

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WB JEE 2021

MCQ (Single Correct Answer)

-0.25

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

0, 0

0, 1

1, 0

1, 1

WB JEE 2020

MCQ (Single Correct Answer)

-0.25

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?

640

900

720

WB JEE 2020

MCQ (Single Correct Answer)

-0.25

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?

0.2 V

0.5 V

4 V

4.8 V

WB JEE 2019

MCQ (Single Correct Answer)

-0.25

In the circuit shown, what will be the current through the 6V zener?

WB JEE 2019 Physics - Electronic Devices Question 16 English

6 mA, from A to B

2 mA, from A to B

2 mA, from B to A

Zero

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