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An n-type semi- conductor is...

An n-type semi- conductor is

A

Positive

B

Negative

C

May be positive or negative

D

Neutral

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The correct Answer is:
D
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n-type semiconductor is

The electron concentration in an n-type semiconductor is the same as hole concentration in a p-type semiconductor. An eternal field (electric) is applied across each of them. Compare the currents in them (1) current in p-type>current in n-type (2) current in n-type>current in p-type (3) No current will flow in p-type, current will only flow in n-type (4) current in n-type=current in p-type

The electron concentration in an n-type semiconductor is the same as hole concentration in a p-type semiconductor. An eternal field (electric) is applied across each of them. Compare the currents in them (1) current in p-type>current in n-type (2) current in n-type>current in p-type (3) No current will flow in p-type, current will only flow in n-type (4) current in n-type=current in p-type

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AAKASH INSTITUTE ENGLISH-SEMICONDUCTOR ELECTRONICS (MATERIAL, DEVICES AND SIMPLE CIRUITS )-Assignment section -A (Objective Type Question)
  1. In a semiconductor,

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  2. The rate of recombination or generation are governed by the law(s) of

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  3. An n-type semi- conductor is

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  4. Solids having highest energy level partially filled with electrons are

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  5. The energy gap for an insulator may be

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  6. If N(A) is number density of acceptor atoms added and N(D) is number...

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  7. In an unbiased p-n junction which of the following is correct?

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  8. With an ac input from 50 Hz power line, the ripple frequency is

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  9. In a semiconductor diode, reserve bias current is due to drift of free...

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  10. The value of form factor in case of half wave rectifier is

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  11. In a semiconductor diode p-side is earthed and N-side is applied a pot...

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  12. Two identical P-N junctions, may be connected in series with a battery...

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  13. Zener diode is used for:-

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  14. In figure the input is across the terminals A and C and the output is ...

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  15. A junction diode , in which one of the p or n - sections is made very ...

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  16. The materials suitable for making a solar cell is

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  17. In which of the configuration of a transistor , the power gain is high...

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  18. In a common base amplifier the phase difference the input signal volta...

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  19. The current transfer ratio beta of a transistor is 100. The input resi...

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  20. In a common emitter transistor circuit, the base current is 40 muA , t...

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