How do the appearances of metals, semiconductors and insulators differ? Why?

Q: Use the figure of band structures to explain why the conductivity of pure metals decreases when…

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Q: The density of the classified vibranium steel alloy of captain america is suprosinglylow 1.56g/cm^3.…

A: Density of steel alloy = 1.56 g/cm3 = 1.56 * 10-3 kg/cm3 radius of Cylinder = 42,9 cm Height of…

Q: 2. What is the coordination number structure formed by most semiconductors and electronic materials…

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Q: The maximum wavelength of light that a certain silicon photocell can detect is 1.11 μm. (a) What is…

A: The energy difference between the top valence band and bottom of conduction band in terms of…

Q: Explain the terms : (a) Intrinsic semiconductor (b) Extrinsic semiconductor.

A: Intrinsic semiconductor: Naturally occurring property of pure material, the number of electrons in…

Q: The best conductor for electron flow is what type of metal?  a. tin b. bronze c. copper d.…

A: Given, a. tin b. bronze c. copper d. silver

Q: 7. What are the properties of metals? O A. Have shiny lustre, various colours (although most are…

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Q: Explain what happens when a pure semiconductor made up of Silicon is doped with an Indium atom…

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Q: Germanium in silicon will be p-type or  n-type?

A: P-type semiconductors are those semiconductors in which the doping material used is from Boron…

Q: Under what conditions do zwitterions exist?

A: A zwitterion is adipolar ion that has a net charge equal to zero. An amino acid has both acidic and…

Q: Classify as n-type or p-type a semiconductor formedby doping {a) germanium w ith phosphorus. {b)…

A: Semiconductors are defines as those materials whose conductivity is greater than insulators while…

Q: How may the conductivity of an intrinsic semiconductor be increased?

A: The intrinsic semiconductor is a type of semiconductor which is pure semiconductor, which has no…

Q: Discuss the reasons for the observation of dominant covalent bonding (but not ionic bonding) in…

A: The interaction present between the atoms and binds them together is known as the bonding. There are…

Q: What is the main element used in the manufacture of solar cells. Explain how additional elements are…

A: Silicon, the most common semiconductor material used in solar cells, representing approximately 95%…

Q: How much dopant is present in 107 kgkg of semiconductor with a dopant concentration of 2.00 ppmppm…

A: Given: Mass of semiconductor = 107 Kg. And the concentration of dopant = 2.00 ppm by mass.

Q: 2. Compare and contrast band theory associated with metals, insulator and semiconductors with…

A: Interpretation-  To compare and contrast band theory associated with metals, insulator and…

Q: What are the characteristics of FCC?

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Q: Unlike metals, semiconductors increase their conductivityas you heat them (up to a point). Suggest…

A: The material that have electrical conductivity in between conductor and insulator is known as…

Q: What is the definition of a ceramic?

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Q: Two solids are shown below. One is a semiconductor andone is an insulator. Which one is which?…

A: Since in insulators, the gap between the conduction band and valence band is very high. Hence there…

Q: The basic reason for the extraordinary sparkle of suitably cut diamond is that ?

A: Diamond features a very high index of refraction (about 2.42 compared to about 1.5 for glass). The…

Q: b) How many tetrahedral and octahedral interstitial sites are there per hcp unit cell? Explain your…

A: A regular arrangement of constituent particles in three dimensional space is call space lattice and…

Q: why Intrinsic Semiconductor materials are the bad conductors of electricity

A: Semiconductor is actually a type of material which has  conductivity in between the conductor and…

Q: Which part in the figure can be a grating or prism? O A O B OD

A: Instruments for analyzing light and for determining the identity and structure of materials that…

Q: Match the following terms to their definition. * Highly Treated Sorption Leaching Soda lime…

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Q: Which of the following substances would most likely contain metallic bonding? a. An organic…

A: Metals are good conductor of heat and electricity whereas non metals are bad conductor of heat and…

Q: Which of the following statements is NOT true about quantum dots? a. Emits intense fluorescence b.…

A: Quantum dots are semiconductor particles having optical and electronic properties that differ from…

Q: How are metals used as semiconductors refined? What is the principle of the method used?

A: The metallic compounds which are found in nature, called as minerals whereas the minerals which can…

Q: Describe the formation of N-type semiconductor.

A: Kindly get the answer given below.

Q: B C Which part in the figure can be a grating or prism? A *中3中。 BC D * O O O O

A: Prism- An optical prism is a transparent optical element with flat, polished surfaces that are…

Q: What are the main differences between Diamagnetic and Paramagnetic materials?

A: Diagmagnetic substances have zero unpaired electron and paramagnetic materials contain unpaired…

Q: (iii) Explain what packaging density is. Calculate the packaging density of the FCC and BCC…

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Q: Polycarbonate is sometimes used for protective helmets, such as motorcycle helmets. However, it is…

A: Polycarbonates are high-performance tough, transparent, amorphous thermoplastic polymer that…

Q: With proper reasons justify at room temperature why silicon is opaque and silicon dioxide is…

A: The silicon ( Si) (Z=14)  is opaque at room temperature. The silicon dioxide (SiO2) transperent at…

Q: The strength of an electromagnet can be controlled. O True O False

A: Electromagnets can be turned on or off and their strength can be changed by controlling the electric…