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A light emining diode is shown as...

A light emining diode is shown as

A

3

B

4

C

2

D

1

Text Solution

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The correct Answer is:
B
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MARVEL PUBLICATION-SEMICONDUCTORS -MCQs
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  2. Silicon and Germanium p-n junction diodes are not used for making LEDs

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  3. A light emining diode is shown as

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  4. A p-n photodiode is made of a material with a band gap of 2.0 eV. The ...

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  5. Consider the following statements A and B and identify the correct ans...

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  6. In a circuit a diode was used and the output voltage across the diode ...

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  7. What is the value of output voltage V(0) in the circuit shown in the f...

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  8. What is the load current in the following zener circuit?

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  9. Light emitting diodes are used in 'alphanumeric' displays of advertise...

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  10. In a p-i-n diode solar cell, the width of the depletion region is incr...

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  11. Which one of the following currents remains approximately constant, wh...

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  12. The light emitting diode (LED),

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  13. From the Zener diode circuit shown in figure, the current through the ...

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  14. A zener diode has a contract potential of 0.8 V in the absence of bias...

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  15. In the circuit, Fig The current through the zener diode is

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  16. In the study of transistor as an amplifier , alpha=lC/lE and beta=IC/I...

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  17. When n-p-n transistor is used as an amplifier :

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  18. For a transistor circuit in common emitter configuration, the voltage ...

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  19. If for a transistor, beta = 49, then the value of alpha is

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  20. If alpha= 60/61 for a transistor, the value of beta is

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