JEE Main 2022 (Online) 26th June Morning Shift | Semiconductor Question 81 | Physics

The I-V characteristics of a p-n junction diode in forward bias is shown in the figure. The ratio of dynamic resistance, corresponding to forward bias voltage of 2 V and 4 V respectively, is :

JEE Main 2022 (Online) 26th June Morning Shift Physics - Semiconductor Question 75 English

1 : 2

5 : 1

1 : 40

20 : 1

JEE Main 2022 (Online) 25th June Evening Shift

MCQ (Single Correct Answer)

-1

Identify the logic operation performed by the given circuit:

JEE Main 2022 (Online) 25th June Evening Shift Physics - Semiconductor Question 74 English

AND gate

OR gate

NOR gate

NAND gate

JEE Main 2022 (Online) 25th June Morning Shift

MCQ (Single Correct Answer)

-1

The photodiode is used to detect the optical signals. These diodes are preferably operated in reverse biased mode because :

fractional change in majority carriers produce higher forward bias current

fractional change in majority carriers produce higher reverse bias current

fractional change in minority carriers produce higher forward bias current

fractional change in minority carriers produce higher reverse bias current

JEE Main 2021 (Online) 1st September Evening Shift

MCQ (Single Correct Answer)

-1

In the given figure, each diode has a forward bias resistance of 30$$\Omega$$ and infinite resistance in reverse bias. The current I₁ will be :

JEE Main 2021 (Online) 1st September Evening Shift Physics - Semiconductor Question 88 English