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Semiconductor

The document contains a series of questions related to semiconductor physics, including energy band diagrams for conductors, semiconductors, and insulators, as well as explanations of LEDs, photodiodes, and solar cells. It also covers concepts such as depletion layers, barrier potential, and the effects of doping concentration and biasing on depletion width. Additionally, it includes requests for circuit diagrams and output waveforms for full wave and half wave rectifiers.

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sahaj.s1297
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18 views1 page

Semiconductor

The document contains a series of questions related to semiconductor physics, including energy band diagrams for conductors, semiconductors, and insulators, as well as explanations of LEDs, photodiodes, and solar cells. It also covers concepts such as depletion layers, barrier potential, and the effects of doping concentration and biasing on depletion width. Additionally, it includes requests for circuit diagrams and output waveforms for full wave and half wave rectifiers.

Uploaded by

sahaj.s1297
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as DOCX, PDF, TXT or read online on Scribd
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Semiconductor

Q1- Draw separate energy band diagrams for conductors,


semiconductors and insulator and label each of them.

Q2-What is LED? Explain how radiations are given out by it.

Q3-For what purpose is photodiode used? Draw its V-I characteristic


for different intensities of illumination.

Q4- Describe the working principle and I-V characteristics of a solar


cell.

Q5- Define the term depletion layer and barrier potential.

Q6- How is the width of depletion layer affected by (i) increase in the
doping concentration (ii)biasing across the junction ?

Q7- Why is germanium preferred over silicon for making


semiconductors?

Q8- Draw circuit and output waveform of a full wave rectifier. What is
the output frequency if the input frequency is 50hz.

Q9- Draw circuit and output waveform of a half wave rectifier. What is
the output frequency if the input frequency is 50hz.

Q10- Draw I-V characteristic curve for PN junction diode for forward
and reverse biased condition.

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