When Arsenic atoms are added to Germanium lattice, it becomes a/an (1) Insulator (2) Superconductor (3) Intrinsic semiconductor (4) Extrinsic semiconductor

When Arsenic atoms are added to Germanium lattice, it becomes a/an (1) Insulator (2) Superconductor (3) Intrinsic semiconductor (4) Extrinsic semiconductor
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Extrinsic semiconductor
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When Arsenic atoms are added Germanium lattice, it becomes a/an - (1) Insulator (2) Superconductor (3) Intrinsic semiconductor (4) Extrinsic semiconductor

Description : When Arsenic atoms are added Germanium lattice, it becomes a/an - (1) Insulator (2) Superconductor (3) Intrinsic semiconductor (4) Extrinsic semiconductor

Last Answer : (4) Extrinsic semiconductor Explanation: When a peritavalent (donor) impurity, like arsenic, is added to germanium, it will form covalent bonds with thegermanium atoms, leaving 1 electron relatively ... this manner - either with Nor P-type impurities - are referred to as EXTRINSIC semiconductors.

Pure semiconductors silicon and germanium are a) Extrinsic b) Intrinsic c) Insulator d) Diodes

Description : Pure semiconductors silicon and germanium are a) Extrinsic b) Intrinsic c) Insulator d) Diodes

Last Answer : b) Intrinsic

C and Si both have same lattice structure, having 4 bonding electrons in each. However, C is insulator where as Si is intrinsic semiconductor. This is because (1) The four bonding electrons in the case of C lie in the third orbit, whereas for Si they lie in the fourth orbit (2) In case of C the valance band is not completely filled at absolute zero temperature (3) In case of C the conduction band is partly filled even at absolute zero temperature (4) The four bonding electrons in the case of C lie in the second orbit, whereas in the case of Si they lie in the third

Description : C and Si both have same lattice structure, having 4 bonding electrons in each. However, C is insulator where as Si is intrinsic semiconductor. This is because (1) The four bonding electrons in the case of C ... the case of C lie in the second orbit, whereas in the case of Si they lie in the third

Last Answer : (4) The four bonding electrons in the case of C lie in the second orbit, whereas in the case of Si they lie in the third

A doped semiconductor is called : a) Extrinsic b) Intrinsic c) Insulator d) Conductor

Description : A doped semiconductor is called : a) Extrinsic b) Intrinsic c) Insulator d) Conductor

Last Answer : b) Intrinsic

At very high temperatures, extrinsic semiconductor becomes intrinsic semiconductor because

Description : At very high temperatures, extrinsic semiconductor becomes intrinsic semiconductor because (A) Of drive in diffusion of dopants & carriers. (B) Band to band transition dominates impurity ionization. (C) ... band to band transition. (D) Band to band transition is balanced by impurity ionisation.

Last Answer : At very high temperatures, extrinsic semiconductor becomes intrinsic semiconductor because Impurity ionization dominates band to band transition.

An example of semiconductor is - (1) German silver (2) Germanium (3) Phosphorous (4) Arsenic

Description : An example of semiconductor is - (1) German silver (2) Germanium (3) Phosphorous (4) Arsenic

Last Answer : (2) Germanium Explanation: Purified germanium is a semiconductor, with appearance most similar to elemental silicon. Like silicon, germanium naturally reacts and forms complexes with oxygen in nature. Unlike silicon, it is too reactive to be found naturally on Earth in the free (native) state.

An example of semiconductor is (1) German silver (2) Germanium (3) Phosphorous (4) Arsenic

Description : An example of semiconductor is (1) German silver (2) Germanium (3) Phosphorous (4) Arsenic

Last Answer : Germanium

Ohm's law is valid in case of – (1) semiconductor (2) conductor (3) superconductor (4) insulator

Description : Ohm's law is valid in case of – (1) semiconductor (2) conductor (3) superconductor (4) insulator

Last Answer : (2) conductor Explanation: Ohm's law states that the current through a conductor between two points is directly proportional to the potential difference across the two points. It defines the relationship between the three fundamental, electrical quantities: current, voltage, and resistance.

Ohm’s law is valid in case of (1) semiconductor (2) conductor (3) superconductor (4) insulator

Description : Ohm’s law is valid in case of (1) semiconductor (2) conductor (3) superconductor (4) insulator

Last Answer : conductor

Differentiate between intrinsic and extrinsic semiconductor

Description : Differentiate between intrinsic and extrinsic semiconductor

Last Answer : Pure form of semiconductors are said to be intrinsic semiconductor. Ex: germanium, silicon. It has poor conductivity If certain amount of impurity atom is added to intrinsic semiconductor the resulting semiconductor is Extrinsic or impure Semiconductor It has good conductivity.

n-type semiconductor is an example of (A) extrinsic semiconductor. (B) intrinsic semiconductor. (C) super conductor. (D) insulators..

Description : n-type semiconductor is an example of (A) extrinsic semiconductor. (B) intrinsic semiconductor. (C) super conductor. (D) insulators..

Last Answer : (A) extrinsic semiconductor.

Define intrinsic and extrinsic semiconductor.

Description : Define intrinsic and extrinsic semiconductor. 

Last Answer : Intrinsic – Semiconductor in pure form is called as intrinsic semiconductor. Extrinsic – Semiconductor with added impurity is called as extrinsic semiconductor.

Compare intrinsic and extrinsic semiconductor

Description : Compare intrinsic and extrinsic semiconductor

Last Answer : Intrinsic semiconductor Extrinsic Semiconductor Pure form of semiconductor Impure form of semiconductor No. electrons and holes are equal  No. of electrons and holes are not equal Electrical ... e.g. Ge, Si semiconductor e.g. p-type or n-type semiconductor

In a transistor, the base is _______. (1) an insulator (2) a conductor of low resistance (3) a conductor of high resistance (4) an extrinsic semiconductor

Description : In a transistor, the base is _______. (1) an insulator (2) a conductor of low resistance (3) a conductor of high resistance (4) an extrinsic semiconductor

Last Answer : (2) a conductor of low resistance Explanation: A transistor is a semiconductor device used to amplify and switch electronic signals and electrical power. It is composed of semiconductor material with at least three terminals for connection to an external circuit.

Silicon is a _____. A. Superconductor B. Conductor C. Semi-conductor D. Insulator

Description : Silicon is a _____. A. Superconductor B. Conductor C. Semi-conductor D. Insulator

Last Answer : ANSWER: C

Silicon is a _____. A. Superconductor B. Conductor C. Semi-conductor D. Insulator

Description : Silicon is a _____. A. Superconductor B. Conductor C. Semi-conductor D. Insulator

Last Answer : ANSWER: C

Heating of ferromagnetic materials to a temperature above Curie temperature makes it (A) Insulator for heat & electricity transmission (B) Ferritic (C) Behave like paramagnetic materials (D) Superconductor

Description : Heating of ferromagnetic materials to a temperature above Curie temperature makes it (A) Insulator for heat & electricity transmission (B) Ferritic (C) Behave like paramagnetic materials (D) Superconductor

Last Answer : Option C

What is the type of bond by germanium and arsenic?

Description : What is the type of bond by germanium and arsenic?

Last Answer : Feel Free to Answer

Tests of coagulation are used to monitor anticoagulation treatment and detect intrinsic abnormalities in coagulation. Which of the following statement(s) is/are true concerning coagulation tests? a. Prothrombin time (PT) measures both the intrinsic and extrinsic clotting pathways and fibrinogen b. Activated partial thromboplastin time (aPTT) can be used to monitor both oral anticoagulation with Warfarin and intravenous anticoagulation with heparin c. Thrombin clotting time (TCT) is a measurement of the time it takes for exogenously administered thrombin to turn plasma fibrinogen into fibrin clot d. Whole blood activated clotting time (ACT) is a measurement of the ability of whole blood to clot and is used to monitor heparin levels intraoperatively during cardiovascular and peripheral vascu

Description : Tests of coagulation are used to monitor anticoagulation treatment and detect intrinsic abnormalities in coagulation. Which of the following statement(s) is/are true concerning ... is used to monitor heparin levels intraoperatively during cardiovascular and peripheral vascular operations

Last Answer : Answer: a, c, d Coagulation tests include prothrombin time (PT), which measures the intrinsic and extrinsic pathways of fibrinogen production and is the most common method for ... more while for peripheral vascular applications, values of 250 seconds or greater are considered appropriate

Which type of patient is most likely to hypersensitive to aspirin? (a) Intrinsic asthamatic (b) Extrinsic asthamatic (c) Chronic bronchitic (d) Patient with viral injection (e) Both (c) and (d)

Description : Which type of patient is most likely to hypersensitive to aspirin? (a) Intrinsic asthamatic (b) Extrinsic asthamatic (c) Chronic bronchitic (d) Patient with viral injection (e) Both (c) and (d)

Last Answer : Ans: A

According to fluid mosaic model, plasma membrane is composed of (a) phospholipids and oligosaccharides (b) phospholipids and hemicellulose (c) phospholipids and integral proteins (d) phospholipids, extrinsic proteins and intrinsic proteins.

Description : According to fluid mosaic model, plasma membrane is composed of (a) phospholipids and oligosaccharides (b) phospholipids and hemicellulose (c) phospholipids and integral proteins (d) phospholipids, extrinsic proteins and intrinsic proteins.

Last Answer : (d) phospholipids, extrinsic proteins and intrinsic proteins.

Fiber-to-fiber coupling loss is affected by intrinsic and extrinsic coupling losses. Can intrinsic coupling losses be limited by limiting fiber mismatches?

Description : Fiber-to-fiber coupling loss is affected by intrinsic and extrinsic coupling losses. Can intrinsic coupling losses be limited by limiting fiber mismatches?

Last Answer : Yes.

Low concentrations of heparin selectively interfere with the following coagulation pathway(s): A. Intrinsic pathway B. Extrinsic pathway C. Common pathway D. Both ‘A’ and ‘C’

Description : Low concentrations of heparin selectively interfere with the following coagulation pathway(s): A. Intrinsic pathway B. Extrinsic pathway C. Common pathway D. Both ‘A’ and ‘C’

Last Answer : A. Intrinsic pathway

Which answer corresponds to a person's internal desire to do something, due to such things as interest, challenge and personal satisfaction? (a) Theory X ; (b) Extrinsic motivators ; (c) Intrinsic motivators ; (d) Theory Y

Description : Which answer corresponds to a person's internal desire to do something, due to such things as interest, challenge and personal satisfaction? (a) Theory X ; (b) Extrinsic motivators ; (c) Intrinsic motivators ; (d) Theory Y

Last Answer : ; (c) Intrinsic motivators ;

Allocating extrinsic rewards for behaviour that has been previously intrinsically rewarded tends to decrease the overall level of motivation, and is called: (a) Reward Evaluation Theory ; (b) Extrinsic Evaluation Theory ; (c) Cognitive Evaluation Theory (d) Intrinsic Evaluation Theory

Description : Allocating extrinsic rewards for behaviour that has been previously intrinsically rewarded tends to decrease the overall level of motivation, and is called: (a) Reward Evaluation Theory ; (b) Extrinsic Evaluation Theory ; (c) Cognitive Evaluation Theory (d) Intrinsic Evaluation Theory 

Last Answer :  (c) Cognitive Evaluation Theory

Which of the following is an insulator? (1) Mercury (2) Carbon (3) Germanium (4) Glass

Description : Which of the following is an insulator? (1) Mercury (2) Carbon (3) Germanium (4) Glass

Last Answer : (4) Glass Explanation: Insulators are materials that do not allow the transfer or that slow the transfer of heat or electricity. Some of the examples of insulators are: glass, plastic, rubber, porcelain, wood, ceramic, dry air, etc.

Which of the following is an insulator? (1) Mercury (2) Carbon (3) Germanium (4) Glass

Description : Which of the following is an insulator? (1) Mercury (2) Carbon (3) Germanium (4) Glass

Last Answer : Glass

High vacuum diodes, gas-filled diodes, and germanium semiconductor diodes may all be used as _____________. A. potentiometers B. rectifiers C. power sources D. photocells

Description : High vacuum diodes, gas-filled diodes, and germanium semiconductor diodes may all be used as _____________. A. potentiometers B. rectifiers C. power sources D. photocells

Last Answer : Answer: B

What is an extrinsic semiconductor or doped?

Description : What is an extrinsic semiconductor or doped?

Last Answer : A semiconductor whose conductivity is enhanced by addition of minute traces ofimpurities is called doped or extrinsic semiconductor.

Give reason: Silicon is used widely even through Germanium is a better semiconductor material.

Description : Give reason: Silicon is used widely even through Germanium is a better semiconductor material.

Last Answer : Silicon is the second most abundantly available material and it can be used at higher temperature. Hence it widely used than Germanium.

Semiconductor germanium and silicon are (a) Pentavalent (b) trivalent (c) divalent (d) tetravalent

Description : Semiconductor germanium and silicon are (a) Pentavalent (b) trivalent (c) divalent (d) tetravalent

Last Answer : (d) tetravalent

The conductivity of an extrinsic semiconductor (A) decreases with temperature. (B) increases with temperature. (C) remains constant with temperature. (D) decreases and then increases with temperature.

Description : The conductivity of an extrinsic semiconductor (A) decreases with temperature. (B) increases with temperature. (C) remains constant with temperature. (D) decreases and then increases with temperature.

Last Answer : (B) increases with temperature.

Define the term-Dopant, Extrinsic semiconductor.

Description : Define the term-Dopant, Extrinsic semiconductor. 

Last Answer : Dopant: - An element or compound used to dope a semiconductor is called dopant.  Extrinsic Semiconductor:- In order to increase current carrying capacity some impurity are added in a semiconductor such semiconductor are called extrinsic Semiconductor. 

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.

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.

The conductivity of an extrinsic semiconductor with temperature

Last Answer : The conductivity of an extrinsic semiconductor with temperature remains constant.

When a metal becomes a superconductor, there is a tremendous decrease in its: w) total volume x) electrical resistance y) length z) density

Description : When a metal becomes a superconductor, there is a tremendous decrease in its: w) total volume x) electrical resistance y) length z) density

Last Answer : ANSWER: X -- ELECTRICAL RESISTANCE

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.

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.

Stilton is a – (1) Semiconductor (2) Insulator (3) Nonconductor (4) Conductor

Description : Stilton is a – (1) Semiconductor (2) Insulator (3) Nonconductor (4) Conductor

Last Answer : (1) Semiconductor Explanation: Silicon is a chemical element with the symbol Si and its atomic number is 14. Over 90 percent of the Earth's crust is composed of silicate minerals. Highly purified silicon is used in semiconductor electronics.

Silicon is a (1) Semiconductor (2) Insulator (3) Nonconductor (4) Conductor

Description : Silicon is a (1) Semiconductor (2) Insulator (3) Nonconductor (4) Conductor

Last Answer : Semiconductor

How many atoms are there per unit cell in a body centred cubic lattice system? (A) 6 (B) 5 (C) 3 (D) 2

Description : How many atoms are there per unit cell in a body centred cubic lattice system? (A) 6 (B) 5 (C) 3 (D) 2

Last Answer : (D) 2

Out of the following, the lowest packing of atoms exists in __________ crystal lattice structure. (A) Hexagonal close, packed (hcp) (B) Face centred cubic (fcc) (C) Body centred cubic (bcc) (D) Simple cubic

Description : Out of the following, the lowest packing of atoms exists in __________ crystal lattice structure. (A) Hexagonal close, packed (hcp) (B) Face centred cubic (fcc) (C) Body centred cubic (bcc) (D) Simple cubic

Last Answer : (D) Simple cubic

What is the effect of temperature on an intrinsic semiconductor?

Description : What is the effect of temperature on an intrinsic semiconductor?

Last Answer : An intrinsic semiconductor is basically a pure semiconductor, though some might argue that a small amount of doping can still yield an intrinsic semiconductor. In the crystal structure of ... semiconductor has a positive temperature coefficient. More heat, more conduction under the same conditions.

Which of the listed conditions describes the effect on intrinsic semiconductor operation as a result of a temperature increase? A. Additional heat sinks will be required B. Conductivity will increase C. Conductivity will decrease D. Resistivity will increase

Description : Which of the listed conditions describes the effect on intrinsic semiconductor operation as a result of a temperature increase? A. Additional heat sinks will be required B. Conductivity will increase C. Conductivity will decrease D. Resistivity will increase

Last Answer : Answer: B

It is the made from semiconductor material such as aluminum-galium-arsenide or gallium-arsenide-phosphide. A. APD B. Injection laser diode C. Light emitting diode D. Positive-intrinsic-negative

Description : It is the made from semiconductor material such as aluminum-galium-arsenide or gallium-arsenide-phosphide. A. APD B. Injection laser diode C. Light emitting diode D. Positive-intrinsic-negative

Last Answer : C. Light emitting diode

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.

State the impurities for obtaining p-type and n-type semiconductor from intrinsic semi conductor.

Description : State the impurities for obtaining p-type and n-type semiconductor from intrinsic semi conductor. 

Last Answer : Crystals of Silicon and Germanium are doped using two types of dopants:  1. The impurities for obtaining n-type semiconductor from intrinsic semiconductor are pentavalent impurity; like Arsenic (As), Antimony ... semiconductor are trivalent impurity; like Indium (In), Boron (B), Aluminum (Al), etc.

Why is an intrinsic semiconductor doped?

Description : Why is an intrinsic semiconductor doped?

Last Answer : Intrinsic semiconductor is doped in order to increase conductivity of semiconductor. Doping increases majority charge carries either electrons or holes and majority charge carriers responsible for electric current. 

Define (i) Intrinsic semiconductor (ii)Fermi energy level

Description : Define (i) Intrinsic semiconductor (ii)Fermi energy level  

Last Answer : (i) Intrinsic semiconductor: The semiconductor in extremely pure form is called as intrinsic semiconductor.  (ii) Fermi energy level : The energy difference between conduction band and valence band is called as fermi energy level.