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Explain, with the help of a schematic di...

Explain, with the help of a schematic diagram, the principle and working of a Light Emiting Diode. What criterion is kept in mind while choosing the semiconductor material for such a device ? Write any two advantages of light emiting diode over conventional incandescent lamps.

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MODERN PUBLICATION-SEMICONDUCTOR DEVICES-EXERCISE
  1. Distinguish between the light emitting diode and photo diode.

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  2. What the help of a diagram, show that biasing of a light emitting diod...

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  3. Explain, with the help of a schematic diagram, the principle and worki...

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  4. Mention two types of junction transistor. How are they represented.

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  5. Write the function of base region of a transistor. Why is the region m...

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  6. What is transistor ? Give the symbols of n-p-n and p-n-p transistor.

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  7. What is transistor? Give symbols of p-n-p and n-p-n transistor.

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  8. With the help of circuit diagram, explain the working of transistor as...

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  9. With the help of a circuit diagram, explain the action of a N-P-N junc...

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  10. With the help of a circuit diagram, explain the action of a N-P-N junc...

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  11. What is transistor ? Give the symbols of n-p-n and p-n-p transistor.

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  12. Draw the circuit arrangement for studying the output characterstics of...

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  13. Draw the circuit arrangement for studying the output characterstics of...

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  14. Draw the circuit arrangement for studying the output characterstics of...

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  15. Draw the circuit arrangement for studying the output characterstics of...

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  16. Explain with diagram, the working of a transistor as a common-emitter ...

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  17. Explain with diagram, the working of a transistor as a common-emitter ...

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  18. Explain , why the input resistance of a transistor is low and output r...

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  19. If the emitter and base of n-p-n transistor have same doping concentra...

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  20. Discuss the working of p-n-p transistor as an amplifier in common emit...

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