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What are the characteristics of a hole ?...

What are the characteristics of a hole ?

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i. Holes carry a unit positive charge .
ii. Holes have the same charge as that of an electron .
iii. Energy of hole is high as compared to that of electron .
iv. The mobility of hole is smaller than that of electron .
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NEW JOYTHI PUBLICATION-SEMICONDUCTOR ELECTRONICS : MATERIALS , DEVICES AND SIMPLE CIRCUITS -EVALUATION QUESTIONS AND ANSWER
  1. Give some properties of a semiconductor.

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  2. What is a Zener diode ?

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  3. What are the characteristics of a hole ?

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  4. Copy and complete the following block diagram .

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  5. What is meant by forbidden energy gap ?

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  6. What do you mean by fermi energy ?

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  7. What is depletion region in p-n junction ?

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  8. What will happen if both , emitter and collector of a transistor are r...

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  9. How does conductivity of a semiconductor increase ?

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  10. The forward bias of a diode is wrongly given above . a. Redraw the a...

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  11. Classify the following into conductors , insulators and semi conductor...

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  12. The magnitude of potential barrier of germanium is about 0.3 V . a W...

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  13. a. What type of biasting is used here ? b. What happens to the deple...

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  14. Why is a NOT gate known as an inverter ?

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  15. a. What type of biasting is used here ? b. What happens to the deple...

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  16. The above figures represent a p-n-p transistor and an n-p-n transistor...

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  17. In the normal working of a transistor , the emitter is forward biased ...

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  18. A transistor is being used as a common emitter amplifier . a What i...

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  19. How does the conductivity of a semiconductor change with rise in tempe...

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  20. Why are Ge and Si semiconductors ?

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