As the doping to a pure semiconductor increases, the bulk resistance of the semiconductor ………..

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1 Answer

Answer :

As the doping to a pure semiconductor increases, the bulk resistance of the semiconductor Decreases.

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Related questions

The material used for ‘doping’ to prepare N - type semiconductor is

Description : The material used for ‘doping’ to prepare N - type semiconductor is

Last Answer : The material used for ‘doping’ to prepare N - type semiconductor is Arsenic

When a pure semiconductor is heated, its resistance …………..

Last Answer : When a pure semiconductor is heated, its resistance Goes down.

The process of addition of impurity in pure semiconductor is : a) Doping b) Radiating c) Mixing d) Insulating

Description : The process of addition of impurity in pure semiconductor is : a) Doping b) Radiating c) Mixing d) Insulating

Last Answer : d) Insulating

Impurity atoms to be added to pure silicon in order to make a p-type semiconductor belongs to

Description : Impurity atoms to be added to pure silicon in order to make a p-type semiconductor belongs to (a) Phosphorous (b) Boron (c) Antimony (d) Aluminium 

Last Answer : Boron  , a  group  three  element.

The impurity level in an extrinsic semiconductor is about ….. of pure semiconductor.

Last Answer : The impurity level in an extrinsic semiconductor is about 1 atom for 108 atoms of pure semiconductor.

When a pentavalent impurity is added to a pure semiconductor, it becomes ………

Last Answer : When a pentavalent impurity is added to a pure semiconductor, it becomes n-type semiconductor.

In an n-type semiconductor, as the donor concentration ND increases, the Fermi level EF:

Description : In an n-type semiconductor, as the donor concentration ND increases, the Fermi level EF: (1) Remains unaltered (2) Moves towards the conduction band (3) Move towards the center of forbidden energy gap (4) May or may not move depending on temperature 

Last Answer : In an n-type semiconductor, as the donor concentration ND increases, the Fermi level EF: Moves towards the conduction band

A semiconductor has ………… temperature coefficient of resistance.

Last Answer : A semiconductor has Negative temperature coefficient of resistance.

Addition of suitable impurities into semiconductor, is called – (1) Doping (2) Mixing (3) Forming (4) Diluting

Description : Addition of suitable impurities into semiconductor, is called – (1) Doping (2) Mixing (3) Forming (4) Diluting

Last Answer : (1) Doping Explanation: In semiconductor production, doping refers to the introduction of impurities into an extremely pure intrinsic semiconductor for the purpose of modulating its electrical properties. ... type of semiconductor and the properties that it needs to have for its intended purpose.

Which of the following properties distinguish a material as conductor, insulator and semiconductor? a) Free electron charges b) Fermi level after doping c) Energy band gap d) Electron density

Description : Which of the following properties distinguish a material as conductor, insulator and semiconductor? a) Free electron charges b) Fermi level after doping c) Energy band gap d) Electron density

Last Answer : c) Energy band gap

Addition of suitable impurities into semiconductor, is called (1) Doping (2) Mixing (3) Forming (4) Diluting

Description : Addition of suitable impurities into semiconductor, is called (1) Doping (2) Mixing (3) Forming (4) Diluting

Last Answer : Doping

In a single crystal of an intrinsic semiconductor, the number of free carriers at the Fermi level at room

Description : In a single crystal of an intrinsic semiconductor, the number of free carriers at the Fermi level at room temperature is: A) Half the total number of electrons in the crystal B) Zero C) Half the number of atoms in the crystal D) Half the number of free electrons in the crystal

Last Answer : In a single crystal of an intrinsic semiconductor, the number of free carriers at the Fermi level at room temperature is: Zero 

The advantage of a semiconductor strain gauge cover the wire round strain gauge is that

Description : The advantage of a semiconductor strain gauge cover the wire round strain gauge is that

Last Answer : The advantage of a semiconductor strain gauge cover the wire round strain gauge is that it is more sensitive

The semiconductor used for LEDs emitting in the visible range is

Description : The semiconductor used for LEDs emitting in the visible range is  (a) GaAs (b) GaAlAs (c) GalnAs (d) GaAsP

Last Answer : The semiconductor used for LEDs emitting in the visible range is GaAsP

The polar bonds existing in III-V compound semiconductor, may be considered as equivalent to

Description : The polar bonds existing in III-V compound semiconductor, may be considered as equivalent to  (a) 1 ionic bond and 3 covalent bonds (b) 1 ionic bond and 4 covalent bonds (c) 2 ionic bonds and 2 covalent bonds (d) 2 ionic bonds and 4 covalent bonds

Last Answer : The polar bonds existing in III-V compound semiconductor, may be considered as equivalent to 1 ionic bond and 3 covalent bonds

While comparing doped semiconductor vs. un-doped semiconductor, which of the following

Description : While comparing doped semiconductor vs. un-doped semiconductor, which of the following statements is NOT true ? (A) Doped semiconductor has smaller band-gap compared to un-doped semiconductor (B) ... to un-doped semiconductor (D) Doped as well as un-doped semiconductor have equal bandwidth

Last Answer : While comparing doped semiconductor vs. un-doped semiconductor, which of the following statements is NOT true ? (A) Doped semiconductor has smaller band-gap compared to un-doped semiconductor (B) ... to un-doped semiconductor (D) Doped as well as un-doped semiconductor have equal bandwidth

To increase mobility of electron in a given piece of semiconductor

Description : To increase mobility of electron in a given piece of semiconductor (A) Increase overall size of the semiconductor (B) Increase length (C) Increase width (D) Small increase in temperature above room temperature value

Last Answer : To increase mobility of electron in a given piece of semiconductor Small increase in temperature above room temperature value

At absolute temperature, an intrinsic semiconductor has ……….

Last Answer : At absolute temperature, an intrinsic semiconductor has No holes or free electrons.

At room temperature, an intrinsic semiconductor has ……….

Last Answer : At room temperature, an intrinsic semiconductor has A few free electrons and holes.

In an intrinsic semiconductor, the number of free electrons ………

Last Answer :  In an intrinsic semiconductor, the number of free electrons Equals the number of holes.

When the temperature of an extrinsic semiconductor is increased, the pronounced effect is on……

Last Answer : When the temperature of an extrinsic semiconductor is increased, the pronounced effect is on Minority carriers.

In a semiconductor, current conduction is due to ……..

Last Answer : In a semiconductor, current conduction is due to Holes and free electrons.

A hole in a semiconductor is defined as …………….

Last Answer : A hole in a semiconductor is defined as The incomplete part of an electron pair bond.

Addition of trivalent impurity to a semiconductor creates many ……..

Last Answer : Addition of trivalent impurity to a semiconductor creates many Holes.

An n-type semiconductor is ………

Last Answer : An n-type semiconductor is Electrically neutral.

Addition of pentavalent impurity to a semiconductor creates many ……..

Last Answer : Addition of pentavalent impurity to a semiconductor creates many Free electrons.

The strength of a semiconductor crystal comes from ……..

Last Answer : The strength of a semiconductor crystal comes from Electron-pair bonds.

The most commonly used semiconductor is ………..

Last Answer : The most commonly used semiconductor is Silicon.

Pure silicon is

Description : Pure silicon is (a) a p-type semiconductor (b) an n-type semiconductor (c) an intrinsic semiconductor (d) an extrinsic semiconductor 

Last Answer : Pure  silicon  is  an  intrinsic  semiconductor because  its  own  electrons   are  responsible   for   conduction.

The width of depletion layer of a P-N junction – (1) decreases with light doping (2) increases with heavy doping (3) is independent of applied voltage (4) is increased under reverse bias

Description : The width of depletion layer of a P-N junction – (1) decreases with light doping (2) increases with heavy doping (3) is independent of applied voltage (4) is increased under reverse bias

Last Answer : (4) is increased under reverse bias Explanation: The total width of the depletion region is a function of applied reverse-bias and impurity concentration. Forward bias decreases the depletion region width whilst reverse bias increases it.

The width of depletion layer of a P-N junction (1) decreases with light doping (2) increases with heavy doping (3) is independent of applied voltage (4) is increased under reverse bias

Description : The width of depletion layer of a P-N junction (1) decreases with light doping (2) increases with heavy doping (3) is independent of applied voltage (4) is increased under reverse bias

Last Answer :  is increased under reverse bias

What is an intrinsic semiconductor or pure semiconductor?

Description : What is an intrinsic semiconductor or pure semiconductor?

Last Answer : A semiconductor in which the number of holes and electrons are equal is called intrinsic orpure semiconductor.

What is the name given to a piece of pure semiconductor material that has an equal number of electrons and holes?

Description : What is the name given to a piece of pure semiconductor material that has an equal number of electrons and holes?

Last Answer : Intrinsic.

A pure semiconductor under ordinary conditions behaves like (A) a conductor. (B) an insulator. (C) a magnetic material. (D) a ferro-electric material.

Description : A pure semiconductor under ordinary conditions behaves like (A) a conductor. (B) an insulator. (C) a magnetic material. (D) a ferro-electric material.

Last Answer : (B) an insulator.

Single seed descent method of selection is a modification of- a. Mass selection b. Pure line selection c. Pedigree method d. Bulk method

Description : Single seed descent method of selection is a modification of- a. Mass selection b. Pure line selection c. Pedigree method d. Bulk method

Last Answer : d. Bulk method

Single seed descent method of selection is a modification of- a. Mass selection b. Pure line selection c. Pedigree method d. Bulk method

Description : Single seed descent method of selection is a modification of- a. Mass selection b. Pure line selection c. Pedigree method d. Bulk method

Last Answer : d. Bulk method

Consider the following statements: 1. when an electric bulb is switched on, the resistance of its tungsten filament increases. 2. the resistance of pure metals increases on heating. Which of the above statements is/are correct? (a) Both 1 and 2 (b) only 1 (c) only 2 (d) Neither 1 nor 2

Description : Consider the following statements: 1. when an electric bulb is switched on, the resistance of its tungsten filament increases. 2. the resistance of pure metals increases on heating. Which of the above statements is/are correct? (a) Both 1 and 2 (b) only 1 (c) only 2 (d) Neither 1 nor 2

Last Answer : Ans:(a)

Pick out the wrong statement. (A) The controlling resistance in case of heating of air by condensing steam is in the air film (B) The log mean temperature difference (LMTD) for counter flow and parallel flow can be theoretically same when any one of the fluids (hot or cold fluid) passes through the heat exchanger at constant temperature (C) In case of a 1 - 2 shell and tube heat exchanger, the LMTD correction factor value increases sharply, when a temperature cross occurs (D) Phase change in case of a pure fluid at a given pressure from liquid to vapor or vice-versa occurs at saturation temperature

Description : Pick out the wrong statement. (A) The controlling resistance in case of heating of air by condensing steam is in the air film (B) The log mean temperature difference (LMTD) for ... a pure fluid at a given pressure from liquid to vapor or vice-versa occurs at saturation temperature

Last Answer : (C) In case of a 1 - 2 shell and tube heat exchanger, the LMTD correction factor value increases sharply, when a temperature cross occurs

How many other professional bike racers were doping in the Lance Armstrong era?

Description : How many other professional bike racers were doping in the Lance Armstrong era?

Last Answer : I suspect the answer to the title question is all of them. Many of those who came in second, third, or fourth to Armstrong have already been connected to of doping, and most of them have already ... more use of the drugs than others. So maybe the results would have been the same, but maybe not.

Is doping in sports an accepted practice so we can have our super hero's?

Description : Is doping in sports an accepted practice so we can have our super hero's?

Last Answer : answer:I don’t think that performance-enhancing drugs are OK. They call into question every record achieved with them. I also do not think that they are accepted in this country.

Is it doping if your girlfriend uses a cocaine based vaginal cream?

Description : Is it doping if your girlfriend uses a cocaine based vaginal cream?

Last Answer : I call shananigans. I think that’s bs, but if he is telling the truth no I don’t think that’s “doping”

Doping?

Description : Doping?

Last Answer : What kind of performance?

How blood doping could be dangerous. -Biology

Description : How blood doping could be dangerous. -Biology

Last Answer : answer:

How does blood doping affect cellular respiration? -Biology

Description : How does blood doping affect cellular respiration? -Biology

Last Answer : answer:

What is Doping ?

Description : What is Doping ?

Last Answer : Doping is the process of mixing atoms of a quaternary or triangular substance in a quaternary semiconductor to increase the electrical conductivity.

How depletion region get thin by increasing doping level in a zener diode?

Description : How depletion region get thin by increasing doping level in a zener diode?

Last Answer : Doping is a process of mixing sum impurity in a iinsulator andthen that acts like conductor...The materials which are said tobehave like this are called semi conductor . it is very often toknow ... theDepletion region remains there but it never ends....i-e depletionregion can not be removed finally

Explain gene doping ?

Description : Explain gene doping ?

Last Answer : The non-therapeutic utilization of genetic elements like the cells and the genes and the modulation of gene expression, in order to develop the athletic performance of a person is gene doping.

Tunnel diode is a: a) Power diode b) Has light doping c) Has heavy doping d) Is a reverse recovery diode Ans: C 76.LEDs are fabricated from: a) Silicon b) Germanium c) Si or Ge d) Gallium arsenide

Description : Tunnel diode is a: a) Power diode b) Has light doping c) Has heavy doping d) Is a reverse recovery diode Ans: C 76.LEDs are fabricated from: a) Silicon b) Germanium c) Si or Ge d) Gallium arsenide

Last Answer : Ans: D

The purpose of a heat sink, as frequently used with transistors, is to ____________. A. prevent excessive temperature rise B. compensate for excessive doping C. increase the reverse current D. decrease the forward current

Description : The purpose of a heat sink, as frequently used with transistors, is to ____________. A. prevent excessive temperature rise B. compensate for excessive doping C. increase the reverse current D. decrease the forward current

Last Answer : Answer: A