1
JEE Main 2022 (Online) 28th June Morning Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language

Given below are two statements : One is labelled as Assertion A and the other is labelled as Reason R.

Assertion A : n-p-n transistor permits more current than a p-n-p transistor.

Reason R : Electrons have greater mobility as a charge carrier.

Choose the correct answer from the options given below :

A
Both A and R are true, and R is correct explanation of A.
B
Both A and R are true but R is NOT the correct explanation of A.
C
A is true but R is false.
D
A is false but R is true.
2
JEE Main 2022 (Online) 27th June Evening Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language

For a transistor to act as a switch, it must be operated in

A
Active region.
B
Saturation state only.
C
Cut-off state only.
D
Saturation and cut-off state.
3
JEE Main 2022 (Online) 27th June Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Identify the correct Logic Gate for the following output (Y) of two inputs A and B.

JEE Main 2022 (Online) 27th June Morning Shift Physics - Semiconductor Question 57 English

A
JEE Main 2022 (Online) 27th June Morning Shift Physics - Semiconductor Question 57 English Option 1
B
JEE Main 2022 (Online) 27th June Morning Shift Physics - Semiconductor Question 57 English Option 2
C
JEE Main 2022 (Online) 27th June Morning Shift Physics - Semiconductor Question 57 English Option 3
D
JEE Main 2022 (Online) 27th June Morning Shift Physics - Semiconductor Question 57 English Option 4
4
JEE Main 2022 (Online) 26th June Evening Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language

The positive feedback is required by an amplifier to act an oscillator. The feedback here means :

A
External input is necessary to sustain ac signal in output.
B
A portion of the output power is returned back to the input.
C
Feedback can be achieved by LR network.
D
The base-collector junction must be forward biased.
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