What is the output \(Y\) in the following circuit, when all the three inputs \(A\), \(B\), and \(C\) are first \(0\) and then \(1\)
                          
1. \(0,1\)
2. \(0,0\)

3. \(1,0\)

4. \(1,1\)

Subtopic:  Logic gates |
 82%
From NCERT
NEET - 2016
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

To get output \(Y=1\) for the following circuit, the correct choice for the input is:
  

1. \(A=1,~ B= 0, ~C=0\)
2. \(A=1,~ B= 1, ~C=0\)
3. \(A=1,~ B= 0, ~C=1\)
4. \(A=0,~ B= 1, ~C=0\)

Subtopic:  Logic gates |
 89%
From NCERT
NEET - 2016
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

Consider the junction diode as an ideal. The value of current flowing through \(AB\) is: 
   
1. \(10^{-2}~\text{A}\)
2. \(10^{-1}~\text{A}\)
3. \(10^{-3}~\text{A}\)
4. \(0~\text{A}\)

Subtopic:  PN junction |
 76%
From NCERT
NEET - 2016
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

The input signal given to a CE amplifier having a voltage gain of 150 is Vi=2cos15t+π3. The corresponding output signal will be:

1. 30 cos 15t+π3

2. 75 cos 15t+2π3

3. 2 cos 15t+5π3

4. 300 cos 15t+4π3

Subtopic:  Applications of Transistor (OLD NCERT) |
 75%
From NCERT
NEET - 2015
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

If in a \(\mathrm{p\text{-}n}\) junction, a square input signal of \(10~\text{V}\) is applied as shown, 

 
then the output across \(R_L\) will be:

1. 2.
3. 4.
Subtopic:  PN junction |
 72%
From NCERT
NEET - 2015
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

Which logic gate is represented by the following combination of logic gates? 

    
1. \(\mathrm{OR}\)
2. \(\mathrm{NAND}\)
3. \(\mathrm{AND}\)
4. \(\mathrm{NOR}\)
Subtopic:  Logic gates |
 66%
From NCERT
NEET - 2015
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

The given graph represents the \(\mathrm{V\text{-} I}\) characteristic for a semiconductor device.

   

Which of the following statement is correct?

1. It is a \(\mathrm{V\text{-} I}\) characteristic for the solar cell where point \(\mathrm{A}\) represents open-circuit voltage and point \(\mathrm{B}\) short circuit current.
2. It is for a solar cell and points \(\mathrm{A}\) and \(\mathrm{B}\) represent open-circuit voltage and current, respectively.
3. It is for a photodiode and points \(\mathrm{A}\) and \(\mathrm{B}\) represent open-circuit voltage and current respectively.
4. It is for a LED and points \(\mathrm{A}\) and \(\mathrm{B}\) represent open circuit voltage and short circuit current, respectively.
Subtopic:  Applications of PN junction |
 74%
From NCERT
AIPMT - 2014
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

In an \(\mathrm{n\text-}\)type semiconductor, which of the following statement is true?
1. Electrons are minority carriers and pentavalent atoms are dopants.
2. Holes are minority carriers and pentavalent atoms are dopants.
3. Holes are the majority carriers and trivalent atoms are dopants.
4. Electrons are the majority carriers and trivalent atoms are dopants.

Subtopic:  Types of Semiconductors |
 79%
From NCERT
AIPMT - 2013
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

In a common emitter (CE) amplifier having a voltage gain G, the transistor used has trans conductance 0.03 mho and current gain 25. If the above transistor is replaced with another one with transconductance of 0.02 mho and current gain of 20, the voltage gain will be:
1. 1.5G
2. 13G
3. 54G
4. 23G
Subtopic:  Applications of Transistor (OLD NCERT) |
 50%
From NCERT
AIPMT - 2013
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

The output \((X)\) of the logic circuit shown in the figure will be: 
  
1. \(X= \overline{A\cdot B}\)
2. \(X = A\cdot B\)
3. \(X= \overline{A+ B}\)
4. \(X=\overline{\overline{A}} \cdot \overline{\overline{B}}\)

Subtopic:  Logic gates |
 76%
From NCERT
AIPMT - 2013
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh