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

Identify the solar cell characteristics from the following options :

A
JEE Main 2022 (Online) 28th July Morning Shift Physics - Semiconductor Question 40 English Option 1
B
JEE Main 2022 (Online) 28th July Morning Shift Physics - Semiconductor Question 40 English Option 2
C
JEE Main 2022 (Online) 28th July Morning Shift Physics - Semiconductor Question 40 English Option 3
D
JEE Main 2022 (Online) 28th July Morning Shift Physics - Semiconductor Question 40 English Option 4
2
JEE Main 2022 (Online) 27th July Evening Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language

For a constant collector-emitter voltage of $$8 \mathrm{~V}$$, the collector current of a transistor reached to the value of $$6 \mathrm{~mA}$$ from $$4 \mathrm{~mA}$$, whereas base current changed from $$20 \,\mu \mathrm{A}$$ to $$25 \,\mu \mathrm{A}$$ value. If transistor is in active state, small signal current gain (current amplification factor) will be :

A
240
B
400
C
0.0025
D
200
3
JEE Main 2022 (Online) 27th July Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

A logic gate circuit has two inputs A and B and output Y. The voltage waveforms of A, B and Y are shown below.

JEE Main 2022 (Online) 27th July Morning Shift Physics - Semiconductor Question 42 English

The logic gate circuit is :

A
AND gate
B
OR gate
C
NOR gate
D
NAND gate
4
JEE Main 2022 (Online) 25th July Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

In the circuit, the logical value of $$A=1$$ or $$B=1$$ when potential at $$A$$ or $$B$$ is $$5 \mathrm{~V}$$ and the logical value of $$A=0$$ or $$B=0$$ when potential at $$A$$ or $$B$$ is $$0 \mathrm{~V}$$.

JEE Main 2022 (Online) 25th July Morning Shift Physics - Semiconductor Question 47 English

The truth table of the given circuit will be :

A
$$\matrix{ A & B & Y \cr 0 & 0 & 0 \cr 1 & 0 & 0 \cr 0 & 1 & 0 \cr 1 & 1 & 1 \cr } $$
B
$$\matrix{ A & B & Y \cr 0 & 0 & 0 \cr 1 & 0 & 1 \cr 0 & 1 & 1 \cr 1 & 1 & 1 \cr } $$
C
$$\matrix{ A & B & Y \cr 0 & 0 & 0 \cr 1 & 0 & 0 \cr 0 & 1 & 0 \cr 1 & 1 & 0 \cr } $$
D
$$\matrix{ A & B & Y \cr 0 & 0 & 1 \cr 1 & 0 & 1 \cr 0 & 1 & 1 \cr 1 & 1 & 0 \cr } $$
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