Discuss the failure and Success of Classical free electron theory? Differentiate between Conductor, Insulator and Semiconductor on the basis of Conduction and valence band?

Q: Discuss the electrical behavior of conductors, insulators and semiconductors in terms of energy band…

A: Energy band theory: Mainly, this theory gives by Bohr's "according to energy band theory each and…

Q: are made of Au with a work function of 5.1 eV. The electron affinity, Fermi energy and band gap for…

A: Solution: a. Under positive gate voltage.

Q: how does the band structure of a solid makes it an insulator, semiconductor or conductor?

A: Explanation: Conductor: The conductor is a material that contains free movable charges which conduct…

Q: Can we take one slab of p-type semiconductor and physically join it to another n-type semiconductor…

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Q: Discuss the forward region, reverse region, breakdown region and knee voltage of silicone diode…

A: SOlution: Discuss the forward region, reverse region, breakdown region and knee voltage

Q: Show that the expression relating the drift current and the electric field in a semiconductor…

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Q: Calculate the wavelength of radiation in (um) emitted by an LED made up of a semiconducting material…

A: The bandgap energy is given as E=1.87434×10-20 J

Q: If the metal of crystal structure (FCC) has a Fermi energy equals (4eV), and its atomic weight (60).…

A: Energy = E=hcλ=12400 λ (A0)eV Density =Z×MN0×V Where, M = atomic weight V = Volume N0 = avogadro…

Q: Suppose the temperature isT= 300 %. Determine the probatility trat a state 3kt above the Fermi…

A: The probability that an energy state is occupied by electron above fermi level is given by…

Q: When a silicon material is doped with Arsenic (As) that has 5 valance electrons, the doped material…

A: When a small amount of Pentavalent impurity is added to the silicon, it creates extra electrons…

Q: If the ratio of mopility of electrons to mopility of holes is 3:1 and the condicutivity of impure…

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Q: Would you expect superconductivity from a "glass" with no or little crystal structure? If not, why…

A: Now from the definition of superconductivity when the resistivity of a material becomes suddenly…

Q: Discuss the avalanche effect to diodes along with the depletion regions in forward and reverse bias.

A: The avalanche effect is also known as avalanche breakdown. It  happens in a diode only when  a high…

Q: How does a semiconductor differ from a conductor or an insulator?

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Q: distenguish between n-p-n and p-n-p transistors symbolically?

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Q: Discuss the applications of Impurity defects in Semiconductors?

A: Pure semiconductors, also known as intrinsic semiconductors don’t actually conduct electricity. This…

Q: Explain why at high temperature, an extrinsic semiconductor behaves like an intrinsic semiconductor.

A: A small amount of a suitable impurity is added to the pure semiconductor; the conductivity of the…

Q: Suppose a pure Si crystal has 5 × 1028 atoms m-3. It is doped by 1 ppm concentration of pentavalent…

A: Given:  Number of Si crystal, n = 5 × 1028 atoms m-3 Dopping = 1 ppm = 10-6  ni =1.5 × 1016 m-3.

Q: How does the bandgap differ in metals, semiconductors, and insulators?

A: The bandgap is the difference between the energies of the conduction band and valance band. The…

Q: An electron is confined within a thin layer of a semiconductor.If the layer can be treated as an…

A: The energy in the nth level is For n=1, For n=2,

Q: Find the static and dynamic resistance of a p-n germanium junction for an applied bias of 0.6V at…

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Q: if the energy gap is between( 1.2 1 p and 5) eV this is a semiconductor: conductor: insulator

A: Given: The energy gap is between (1.2eV and 5eV)

Q: The depletion region in semiconductors is depleted from

A: to find . by which depletion region in semiconductor is depleted

Q: Why electric conductivity of intrinsic semiconductor is very bad?

A: Intrinsic semiconductor: Any semiconductor is in its pure form is known as the intrinsic…

Q: For an electron tunneling through a rectangular barrier with a barrier height of  Vo = 0.4 eV, a…

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Q: Calculate the electron-hole den sity under steady-state exposur e in n-type silicon with GL = 10…

A: ..

Q: Discuss PN junction diode and explain the barrier potential across the junction?

A: A PN-junction diode is formed when a p-type semiconductor is fused to an n-type semiconductor…

Q: What is the probability that, at a temperature of T = 300 K, an electron will jump across the energy…

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Q: O A field effect transistor (FET) A. Uses a forward bias p-n junction, B. Uses a high concentration…

A: Hi. Since you have posted multiple questions, and not specified which question you want us to solve,…

Q: Consider a silicon pn junction at T = 300 K. Assume the doping concentration in the n region is 1020…

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Q: Discuss the current conduction in n-type and p-type conductors.

A: A small amount of a suitable impurity is added to the pure semiconductor; the conductivity of the…

Q: Why should elements and compounds with positive paramagnetic susceptibilities not be good candidates…

A: Paramagnetic materials: These materials are categorised as those which are weekly attracted to the…

Q: Calculate the temperature at which there is 1% probabailty that a state with an energy 0.5eV, above…

A: Given: Probability = 1 % Energy = 0.5 eV Temperature = ?

Q: Differentiate between conductors, semiconductors and insulators on the basis of band theory.

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Q: Distinguish between an intrinsic and extrinsic semiconductor.

A: Intrinsic semiconductor are pure and natural semiconductors for example Ge and Si. The…

Q: In the motion of a diatomic molecule, the molecule oscillates as if there's a spring connecting the…

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Q: Consider a silicon pn junction at T = 300 K 10 cm and the doping concentration in the p region is…

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Q: Voltage barrier is present on: O intrinsic semiconductor O doped semiconductor O both

A: Voltage Barrier:  Voltage barrier is created due to interaction of free electrons and holes while…

Q: Why Intrinsic Semiconductor materials are the bad conductors of electricity? Elaborate the process…

A: SOlution: To determine why intrinsic emiconductor bad conductors. How to amke them conductor.

Q: Assume that a GaAs semiconductor has a lattice constant a=7.5 Å, and the atoms of Ga and As are hard…

A: Lattice constant for GaAs semiconductor (a) = 7.5 Ao

Q: Difference between intrinsic and extrinsic semiconductors?

A: Intrinsic Semiconductor is a pure form of the semiconductor as there is no addition of impurity…