In a \(\mathrm{p\text{-}n}\) junction diode, the change in temperature due to heating:

1. affects only reverse resistance.
2. affects only forward bias.
3. does not affect the resistance of the \(\mathrm{p\text{-}n}\) junction.
4. affects the overall \(\mathrm{V\text{-}I}\) characteristics of a \(\mathrm{p\text{-}n}\) junction.

Subtopic:  PN junction |
 76%
Level 2: 60%+
NEET - 2018
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The given electrical network is equivalent to:
   

1. \(\text{OR}\) gate 2. \(\text{NOR}\) gate
3. \(\text{NOT}\) gate 4. \(\text{AND}\) gate
Subtopic:  Logic gates |
 74%
Level 2: 60%+
NEET - 2017
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Which one of the following represents the forward bias diode?

1.  
2.  
3.
4.
Subtopic:  PN junction |
 84%
Level 1: 80%+
NEET - 2017
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For the CE transistor amplifier, the audio signal voltage across the collector resistance of 2kΩ is 4V. If the current amplification factor of the transistor is 100 and the base resistance is 1kΩ, then the input signal voltage is:

1.  10 mV

2.  20 mV

3.  30 mV

4.  15 mV

 80%
Level 1: 80%+
NEET - 2016
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The given circuit has two ideal diodes connected as shown in the figure below. The current flowing through the resistance \(R_1\) will be:
   
1. \(2.5~\text{A}\)
2. \(10.0~\text{A}\)
3. \(1.43~\text{A}\)
4. \(3.13~\text{A}\)

Subtopic:  PN junction | Applications of PN junction |
 87%
Level 1: 80%+
NEET - 2016
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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 |
 83%
Level 1: 80%+
NEET - 2016
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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%
Level 1: 80%+
NEET - 2016
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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 |
 78%
Level 2: 60%+
NEET - 2016
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An n-p-n transistor is connected in the common-emitter configuration in a given amplifier. A load resistance of 800 Ω is connected in the collector circuit and the voltage drop across it is 0.8 V. If the current amplification factor is 0.96 and the input resistance of the circuits is 192 Ω, the voltage gain and the power gain of the amplifier will respectively be:
 
1. 3.69, 3.84
2. 4, 4
3. 4, 3.69
4. 4, 3.84
 71%
Level 2: 60%+
NEET - 2016
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In the given figure, a diode \(D\) is connected to an external resistance \(R = 100~\Omega\) and an EMF of \(3.5~\text{V}\). If the barrier potential developed across the diode is \(0.5~\text{V}\), the current in the circuit will be:
  
1. \(30~\text{mA}\)
2. \(40~\text{mA}\)
3. \(20~\text{mA}\)
4. \(35~\text{mA}\)

Subtopic:  PN junction |
 75%
Level 2: 60%+
NEET - 2015
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