1) a) Calculate the typical photon energy and momentum for GaAs and compare it with the typical phonon energy and momentum. Comment on your results. Eg = 1.43 eV. ao = 5.65 x 10-10 m (lattice constant) Vs = 5 x 103 m/s _(Sound velocity) b) Explain the temperature dependence of the band gap energy in semiconductors.

Q: Which one of the following can conduct electric current in semiconductors? O Both electrons and…

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Q: The process of adding an impurity to an undoped semiconductor Please choose one: a. atomic…

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Q: 3- What will be the diode resistance if the current in the circuit is zero?

A:

Q: Q2. List three differences between a P-type and an N-type semiconductor. (you can use diagram)

A: Semiconductor have their electrical conductivity more than non metal and less than metal

Q: List the different between the Ge and Si diode

A:

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Q: Determine Zener diode voltage value as well as the ripple percentage of the circuit below

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Q: T9. Classify each of the following as being either a p type or an n type semiconductor i. Ge doped…

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Q: For voltages above the diffusion voltage, the diode acts like a resistor. Is it correct?

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Q: Determine zener diode voltage value as well as the ripple percentage of the circuit below with…

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Q: Do you know how a diode and an LED are related to semiconductors? Use a diagram with a short…

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Q: Light Emitting Diode Cite/give the following details of the diode: Schematic symbol Construction…

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Q: What is the diode’s power dissipation if the diode voltage is 1.1 V and the diode current is 2 A?

A: The problem is from diode circuit.

Q: The majority carriers in an n-type semiconductor are (a) holes (b) valence electrons (c) conduction…

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Q: What type of diode is 1N4007gp? Prove

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Q: which elements are usually used as impurities for p-type semiconductors.

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Q: A diode circuit responsible to add or restore a DC voltage level to an input AC signal: A)    The…

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Q: Silicon doped with aluminum is what type of semiconductor? compound semiconductor n-type p-type

A:

Q: which elements are usually used as impurities for n-type semiconductors

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Q: By doping number of current carriers in a semiconductor become constant increases become zero…

A: CAN  doping   increases ,decreases or  constant   number of current carriers in a semiconductor?

Q: When a photo-diode is exposed to light the current is minimum and is called "Dark Current". 12 [True…

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Q: Avalanche breakdown destroys the diode Select one: True False

A:

Q: The minority carriers in n-type semiconductors are Select one: protons holes electrons neutrons

A: In n-type semiconductor majority carriers are electrons.  P-type majority carriers are holes

Q: Choose a compound semiconductor from t choices below. O HCI NaOH O NaCl O GaAs

A:

Q: Valence electrons in Silicon are present in a. 8th shell b. 3rd shell c. 4th shell

A: Valence Electrons in Silicon are present in 3rd Shell. Therefore,the correct option is (b).