What is the type of bond by germanium and arsenic?

What is the type of bond by germanium and arsenic?
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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.

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.

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

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

Last Answer : Extrinsic semiconductor

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

why silicon type transistor are more often used than germanium?

Description : why silicon type transistor are more often used than germanium?

Last Answer : because silicon has smaller cutoff current Icbo, small variations in Icbo due to variation in temperature as compared to those in case of germanium.

In order to obtain p-type germanium it should be doped with a (A) Trivalent impurity. (B) Tetravalent impurity. (C) Pentavalent impurity. (D) Any of the above will do.

Description : In order to obtain p-type germanium it should be doped with a (A) Trivalent impurity. (B) Tetravalent impurity. (C) Pentavalent impurity. (D) Any of the above will do.

Last Answer : (A) Trivalent impurity.

Why is silicon and germanium used in semiconductors.pdf?

Description : Why is silicon and germanium used in semiconductors.pdf?

Last Answer : Feel Free to Answer

How many neutrons in a single atom of germanium -74?

Description : How many neutrons in a single atom of germanium -74?

Last Answer : Need answer

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

Name two elements that find wide application in transistor industry – (1) Silicon and Germanium (2) Carbon and Platinum (3) Iridium and Germanium (4) Tungsten and Platinum

Description : Name two elements that find wide application in transistor industry – (1) Silicon and Germanium (2) Carbon and Platinum (3) Iridium and Germanium (4) Tungsten and Platinum

Last Answer : (1) Silicon and Germanium Explanation: A transistor is a semiconductor device used to amplify and switch electronic signals and electrical power. Semiconductor material (date first used): the metalloids ... -germanium (1989), the allotrope of carbon graphene (research ongoing since 2004), etc.

Which of the following elements replaced eka-Aluminium in Mendeleev's Periodic Table? (1) Scandium (2) Gallium (3) Titanium (4) Germanium

Description : Which of the following elements replaced eka-Aluminium in Mendeleev's Periodic Table? (1) Scandium (2) Gallium (3) Titanium (4) Germanium

Last Answer : (2) Gallium

Which one of the following is an ohmic conductor? (1) Germanium (2) Silicon (3) Carbon (4) Silver

Description : Which one of the following is an ohmic conductor? (1) Germanium (2) Silicon (3) Carbon (4) Silver

Last Answer : (4) Silver Explanation: Ohmic conductors are conductors that obey Ohm's law, that is Voltage/Current ratio is constant; in other words, the equation Resistance = Voltage/Current is obeyed. ... s resistance does not change with varying current. Metallic conductors such as silver are Ohmic conductors.

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 listed pairs of materials make the best insulators? A. dry air and a vacuum B. tin and lead C. doped silicon and germanium D. paper and oil

Description : Which of the listed pairs of materials make the best insulators? A. dry air and a vacuum B. tin and lead C. doped silicon and germanium D. paper and oil

Last Answer : Answer: D

Which of the listed pairs of materials make the best insulators? A. copper and aluminum B. glass and mica C. dry air and a vacuum D. doped silicon and germanium

Description : Which of the listed pairs of materials make the best insulators? A. copper and aluminum B. glass and mica C. dry air and a vacuum D. doped silicon and germanium

Last Answer : Answer: B

The illustrated circuit is a _____________. EL-0024 A. megohm meter B. Gauss meter C. wheatstone bridge D. germanium diode tester

Description : The illustrated circuit is a _____________. EL-0024 A. megohm meter B. Gauss meter C. wheatstone bridge D. germanium diode tester

Last Answer : Answer: C

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 kind of battery panels are used in some advance satellites? A. Gallium Arsenide solar panel B. Germanium based panels C. Silicon based panels D. Gallium Phosphate solar panel

Description : What kind of battery panels are used in some advance satellites? A. Gallium Arsenide solar panel B. Germanium based panels C. Silicon based panels D. Gallium Phosphate solar panel

Last Answer : A. Gallium Arsenide solar panel

Why cannot thousands of compounds of Boron or silicon or germanium not possible?

Description : Why cannot thousands of compounds of Boron or silicon or germanium not possible?

Last Answer : Even though B-B, Si-Si, Ge-Ge bonds exits, these compounds are unstable and very reactive and do not last long.

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.

Which of the following is not an example of elemental solid dielectric? a) Diamond b) Sulphur c) Silicon d) Germanium

Description : Which of the following is not an example of elemental solid dielectric? a) Diamond b) Sulphur c) Silicon d) Germanium

Last Answer : c) Silicon

Metalloids (A) Are good conductor of heat & electricity (B) Act as electron donors with metals & as electron acceptor with non metals (C) Are not necessarily solids at room temperature (D) Are compounds that exhibit both metallic & non-metallic properties to some extent and are exemplified by elements like germanium, silicon & boron

Description : Metalloids (A) Are good conductor of heat & electricity (B) Act as electron donors with metals & as electron acceptor with non metals (C) Are not necessarily solids at room temperature ... & non-metallic properties to some extent and are exemplified by elements like germanium, silicon & boron

Last Answer : D) Are compounds that exhibit both metallic & non-metallic properties to some extent and are exemplified by elements like germanium, silicon & boron

When a sample of germanium and silicon having same impurity density are kept at room temperature then Resistivity of silicon will be higher than that of germanium, Why?

Description : When a sample of germanium and silicon having same impurity density are kept at room temperature then Resistivity of silicon will be higher than that of germanium, Why?

Last Answer : Ans-The answer is simple. Consider the PN diode for Ge 0.3eV is the breakdown voltage and in the case of Si its 0.7eV since the impurities are added in the same amount the bond due to the other atoms of the Si makes it resistive compared to the Ge.. thats all!

What is the name given to a doped germanium crystal with an excess of free holes?

Description : What is the name given to a doped germanium crystal with an excess of free holes?

Last Answer : P-type crystal.

Germanium diodes are used in AM detectors because ___

Description : Germanium diodes are used in AM detectors because ___

Last Answer : they minimize distortion from nonlinearit

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 potential barrier for germanium is _______ (a) 0.6 V (b) 0.2 V (c) 0.3 V (d) 0.5 V

Description : The potential barrier for germanium is _______ (a) 0.6 V (b) 0.2 V (c) 0.3 V (d) 0.5 V

Last Answer : (c) 0.3 V

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

Germanium is an example of ____________. a) metal b)metalloid c)non-metal d)none

Description : Germanium is an example of ____________. a) metal b)metalloid c)non-metal d)none

Last Answer : b)metalloid

For germanium the forbidden gap is (A) 0.15ev. (B) 0.25ev. (C) 0.5ev. (D) 0.7ev.

Description : For germanium the forbidden gap is (A) 0.15ev. (B) 0.25ev. (C) 0.5ev. (D) 0.7ev.

Last Answer : (D) 0.7ev.

Germanium possesses (A) one valence electrons. (B) two valence electrons. (C) three valence electrons. (D) four valence electrons.

Description : Germanium possesses (A) one valence electrons. (B) two valence electrons. (C) three valence electrons. (D) four valence electrons.

Last Answer : (D) four valence electrons.

Mendeleev proposed the existence of an unknown element that he called eka-aluminum. The element is now called: w) magnesium x) silicon y) gallium z) germanium

Description : Mendeleev proposed the existence of an unknown element that he called eka-aluminum. The element is now called: w) magnesium x) silicon y) gallium z) germanium

Last Answer : ANSWER: C -- GALLIUM

Name two elements that find wide application in transistor industry (1) Silicon and Germanium (2) Carbon and Platinum (3) Iridium and Germanium (4) Tungsten and Platinum

Description : Name two elements that find wide application in transistor industry (1) Silicon and Germanium (2) Carbon and Platinum (3) Iridium and Germanium (4) Tungsten and Platinum

Last Answer : Silicon and Germanium

Which one of the following is an ohmic conductor? (1) Germanium (2) Silicon (3) Carbon (4) Silver

Description : Which one of the following is an ohmic conductor? (1) Germanium (2) Silicon (3) Carbon (4) Silver

Last Answer : Silver

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

‘Germanium diode knee voltage is lower than silicon diode knee voltage.' Justify.

Description :  ‘Germanium diode knee voltage is lower than silicon diode knee voltage.' Justify.

Last Answer : Justification: The band gap between conduction and valence band for Germanium (0.66eV) is less as compared to Silicon (1.11eV).Hence less energy is required to start conduction in Germanium diode. 

The Maximum spectral response of the germanium and silicon is in the

Description : The Maximum spectral response of the germanium and silicon is in the   (A) infrared region (B) ultraviolet region (C) visible region (D) x-ray region

Last Answer : The Maximum spectral response of the germanium and silicon is in the ultraviolet region

Which of the following elements are used as dopants in silicon or germanium semiconductors?

Description : Which of the following elements are used as dopants in silicon or germanium semiconductors? A) Antimony B) Phosphorus C) Arsenic D) All the above

Last Answer : Which of the following elements are used as dopants in silicon or germanium semiconductors? A) Antimony B) Phosphorus C) Arsenic D) All the above

For germanium the forbidden energy gap is?

Last Answer : 0.7 Is the forbidden energy gap of germanium

What do people commonly do to rice to remove the arsenic?

Description : What do people commonly do to rice to remove the arsenic?

Last Answer : They don’t. They just try not to eat too much or too often.

What are the ways to purify arsenic-contaminated water ?

Description : What are the ways to purify arsenic-contaminated water ?

Last Answer : Arsenic free water should be used through purifying filter through PSF. In Bangladesh , there is an easily available and affordable method of releasing arsenic from arsenic-contaminated water , called ... does not remove arsenic, but when the water dries up, the concentration of arsenic increases.

What is the number of electrons in arsenic ?

Description : What is the number of electrons in arsenic ?

Last Answer : Arsenic has 33 electrons .

What is the acceptable level of arsenic in water ?

Description : What is the acceptable level of arsenic in water ?

Last Answer : Acceptable levels of arsenic in water : 0 . 01 Mr. _ Gr . Per Litter.

What is the atomic number of arsenic ?

Description : What is the atomic number of arsenic ?

Last Answer : The atomic number of arsenic is 33 .

What is arsenic ?

Description : What is arsenic ?

Last Answer : Arsenic is a toxic chemical that contaminates tube well water.

What is arsenic contamination ?

Last Answer : Arsenic contamination occurs due to natural causes. The soil contains arsenic minerals. When this mineral comes in contact with the ground water level, it mixes with the water and contaminates the water. Thus arsenic ... the onset of rain. The tank needs to be thoroughly cleaned 2 to 3 times a year.

In which district was the first arsenic detected ?

Last Answer : The first arsenic was caught in Chapainawabganj.

Arsenic Free District How many ?

Last Answer : 3 Rangamati , Bandarban , Khagrachhari.

general Most More Arsenic Pollution free Upazila Which one ?

Last Answer : Bangladesh Most More Arsenic Pollution free Upazila Shahrashti.

Arsenic Atomic Numbers How much ?

Description : arsenic Atomic Numbers How much ?

Last Answer : Arsenic Atomic Number - 33