JEE Main 2021 (Online) 25th February Morning Slot | Semiconductor Question 78 | Physics

JEE Main 2021 (Online) 25th February Morning Slot

MCQ (Single Correct Answer)

-1

A 5V battery is connected across the points X and Y. Assume D₁ and D₂ to be normal silicon diodes. Find the current supplied by the battery if the +ve terminal of the battery is connected to point X.

JEE Main 2021 (Online) 25th February Morning Slot Physics - Semiconductor Question 78 English

JEE Main 2021 (Online) 25th February Morning Slot Physics - Semiconductor Question 78 English

$$ \sim $$ 0.5 A

$$ \sim $$ 1.5 A

$$ \sim $$ 0.43 A

$$ \sim $$ 0.86 A

JEE Main 2021 (Online) 24th February Evening Slot

MCQ (Single Correct Answer)

-1

JEE Main 2021 (Online) 24th February Evening Slot Physics - Semiconductor Question 81 English

The logic circuit shown above is equivalent to :

JEE Main 2021 (Online) 24th February Evening Slot Physics - Semiconductor Question 81 English Option 1

JEE Main 2021 (Online) 24th February Evening Slot Physics - Semiconductor Question 81 English Option 2

JEE Main 2021 (Online) 24th February Evening Slot

MCQ (Single Correct Answer)

-1

Given below are two statements :

Statement I : PN junction diodes can be used to function as transistor, simply by connecting two diodes, back to back, which acts as the base terminal.

Statement II : In the study of transistor, the amplification factor $$\beta$$ indicates ratio of the collector current to the base current.

In the light of the above statements, choose the correct answer from the options given below.

Both Statement I and Statement II are false

Statement I is false but Statement II is true

Both Statement I and Statement II are true

Statement I is true but Statement II is false

JEE Main 2021 (Online) 24th February Evening Slot

MCQ (Single Correct Answer)

-1

Zener breakdown occurs in a p $$-$$ n junction having p and n both :

heavily doped and have wide depletion layer.

lightly doped and have narrow depletion layer.

heavily doped and have narrow depletion layer.

lightly doped and have wide depletion layer.