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Electronical configuration of germenium ...

Electronical configuration of germenium is `2,8,18` and `4`. To make it extrinsic semiconductor small quantity of antimony is added

A

The material obtained will be `N`-type germanium in which electrons and holes are equal in number

B

The material obtained will be `P`-type germanium

C

The material obtained will be `N`-type germanium which has more electrons than holes at room temperature

D

The material obtained will be `N`-type germanium which has less electrons than holes at room temperature

Text Solution

Verified by Experts

The correct Answer is:
C
Antimony is fifth group impurity and is therefore a donor of electrons.
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A2Z-SEMICONDUCTOR ELECTRONICS-Classification Of Metals
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  2. In P-type semiconductor the majority and minority charge carriers are ...

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  3. Electronical configuration of germenium is 2,8,18 and 4. To make it ex...

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  4. The impurity atoms with which pure silicon should be doped to make a p...

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  5. AN-type semiconductor is

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  6. To obtain a P-type Si semiconductor, we need to dope pure Si with

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  7. The majority charge carriers in P-type semiconductors are

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  8. When a battery is connected to a P-type semiconductor with a metallic ...

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  9. A P-type semiconductor can be obtained by adding

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  10. When Ge crystal are dopped with phosphorus atom, then it becomes

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  11. Wires P and Q have the same resistance at ordinary (room) temperature....

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  12. Let n(p) and n(e) be the number of holes and conduction electrons resp...

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  13. In P-type semiconductor germenium is dopped with

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  14. In N-type semiconductors, majority charge carriers are

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  15. If n(e) and n(h) are the number of electrons and holes in a semiconduc...

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  16. An N-type and P-type silicon can be obtained by dopping pure silicon w...

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  17. N-type semiconductors will be obtained, when germanium is dopped with

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  18. For germenium crystal, the forbidden energy gap in joules is

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  19. A pure semiconductor behaves slightly as a conductor at

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  20. P-type semiconductors are made by adding impurity element

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