1
MCQ (Single Correct Answer)
AIPMT 2007
Which one of the following represents forward bias diode ?
A
B
C
D
Explanation
A diode is said to be forward biased if p-side is at higher potential than n-side of p-n junction.
2
MCQ (Single Correct Answer)
AIPMT 2006
Which one of the following represents forward bias diode ?
A
B
C
D
Explanation
A diode is said to be forward biased if p-side is at higher potential than n-side of p-n junction.
3
MCQ (Single Correct Answer)
AIPMT 2006
The following figure shows a logic gate circuit with two inputs A and B and the output C.
The voltage waveforms of A, B and C are as shown below.
The logic circuit gate is
The voltage waveforms of A, B and C are as shown below.
The logic circuit gate is
Explanation
The truth table corresponding to
waveform is given by
$$\matrix{ A & B & C \cr 1 & 1 & 1 \cr 0 & 1 & 0 \cr 1 & 0 & 0 \cr 0 & 0 & 0 \cr } $$
$$ \therefore $$ The given logic circuit gate is AND gate.
$$\matrix{ A & B & C \cr 1 & 1 & 1 \cr 0 & 1 & 0 \cr 1 & 0 & 0 \cr 0 & 0 & 0 \cr } $$
$$ \therefore $$ The given logic circuit gate is AND gate.
4
MCQ (Single Correct Answer)
AIPMT 2006
A transistor is operated in common emitter configuration at constant collector voltage VC = 1.5 V such that a change in the base current from 100 $$\mu $$A to 150 $$\mu $$A profuces a change in the collector current from 5 mA to 10 mA. The current gain $$\beta $$ is
Explanation
Current gain, $$\beta $$ = $${{\Delta {I_C}} \over {\Delta {I_B}}}$$
= $${{\left( {10 - 5} \right) \times {{10}^{ - 3}}} \over {\left( {150 - 100} \right) \times {{10}^{ - 6}}}}$$ = 100
= $${{\left( {10 - 5} \right) \times {{10}^{ - 3}}} \over {\left( {150 - 100} \right) \times {{10}^{ - 6}}}}$$ = 100
Questions Asked from Semiconductor Electronics
On those following papers in MCQ (Single Correct Answer)Number in Brackets after Paper Name Indicates No of Questions
NEET 2021 (3)
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NEET 2020 Phase 1 (3)
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NEET 2019 (2)
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NEET 2018 (3)
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NEET 2017 (3)
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NEET 2016 Phase 2 (3)
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AIPMT 2015 (2)
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AIPMT 2014 (2)
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NEET 2013 (Karnataka) (3)
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AIPMT 2012 Mains (2)
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AIPMT 2012 Prelims (5)
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AIPMT 2011 Mains (3)
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AIPMT 2011 Prelims (4)
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AIPMT 2010 Prelims (5)
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AIPMT 2008 (3)
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AIPMT 2007 (4)
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AIPMT 2005 (6)
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AIPMT 2004 (4)
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AIPMT 2002 (5)
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AIPMT 2001 (3)
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Chapters Map
Electricity
Current Electricity
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Magnetism and Matter
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Electrostatics
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Moving Charges and Magnetism
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Electromagnetic Induction and Alternating Current
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Electromagnetic Waves
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Optics
Optics
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Modern Physics
Dual Nature of Radiation and Matter
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Atoms and Nuclei
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Semiconductor Electronics
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Mechanics
Properties of Matter
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Oscillations
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Waves
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Work, Energy and Power
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Rotational Motion
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Gravitation
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Units & Measurement
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Motion in a Plane
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Heat and Thermodynamics
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Motion in a Straight Line
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Laws of Motion
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