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Only P is a pentavalent impurity atom,it...

Only P is a pentavalent impurity atom,its doping with germanium produces a p-types semi-conductor

A

indium

B

phosphorus

C

arsenic

D

antimony

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The correct Answer is:
a
Only In is a trivalent impurity atom, its doping with germanium produces a p-type semi-conductor.
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FULL MARKS-SEMICONDUCTOR ELECTRONICS-Additional question(M. C.Q)
  1. At absolute zero, Si acts as

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  2. Which of the following, when added as an impurity into the silicon, pr...

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  3. Only P is a pentavalent impurity atom,its doping with germanium produc...

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  4. When arsenic is added as an impurity to silicon, the resulting materia...

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  5. In a p-type semiconductor, the majority carriers of current are

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  6. The depletion layer in the p-n junction region is caused by

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  7. In the depletion region of an unbiased p-n junction diode, there are

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  8. In forward bias the width of potential barrier in a p-n diode

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  9. Reverse bias applied to a junction diode

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  10. Barrier potential of a p-njunction diode does not depend on

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  11. The peak voltage in the output of a half wave diode rectifier fed with...

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  12. A p-n diode can be used as

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  13. Zener diode is used for

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  14. when NPN transistor is used as an amplifier then ……….

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  15. The correct relationship between the two current gains alpha and beta ...

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  16. The correct relation for alpha,beta for a transistor is

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  17. In common - emitter amplifier the ratio (IC)/(IE) 0.98. The current ga...

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  18. Radio waves of constant amplitude can be generated with

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  19. An oscillator is an amplifier with

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  20. The output of OR gate is 1

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