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To a germanium crystal equal number of a...

To a germanium crystal equal number of aluminium and indium atoms are added. Then

A

it remains an intrinsic semiconductor

B

it becomes an n-type semiconductor

C

it becomes a p-type semiconductor

D

it becomes an insulator

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Verified by Experts

The correct Answer is:
c
Both Al and in are trivalent atoms. Their doping in germanium results in a p-type semiconductor.
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FULL MARKS-SEMICONDUCTOR ELECTRONICS-Additional question(M. C.Q)
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  2. n-type semiconductor is

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  3. To a germanium crystal equal number of aluminium and indium atoms are ...

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  4. The dominant contribution to current comes from holes in case of

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  5. For a heavily doped n-type semiconductor, fermi-level lies

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  6. The coordination number for a bcc crystal is

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  7. If the forward voltage in a diode is increased the width of the deplet...

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  8. In order to rectify an alternating current one uses a

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  9. Why is there sudden increase in current in Zener diode?

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  10. In a transistor

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  11. Let ie ,ie and ib represent emitter current, collector current and the...

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

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  13. The gate for which output is high, if atleast one input is low?

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  14. An oscillator is nothing but an amplifier with

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  15. Crystalline solid are

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  16. Which among the following is an amorphous solid ?

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  17. Energy required to break one band in DNA is

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  18. An intrinsic semiconductor, at the absolute zero temperature, behaves ...

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  19. In a semiconducting material the mobilities of electrons and holes are...

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  20. In a pure semiconductor crystal, if current flows due to breakage of c...

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