Draw the schematic diagram showing the energy level alignment of metal-semiconductor and semiconductor-semiconductor junctions after contact under thermal equilibrium for the following cases. Note P = work function % = electron affinity Eg = band gap Ec = conduction band Ev = valence band EF = fermi level 1. semiconductor EVAC Metal Ec Eps EFM Ey Before contact 2. Metal semiconductor EVAC Xs Ec Eps ErM Ey Before contact Metal semiconductor EVAC OM Ec EFM Eps Ey Before contact 3. Electron energy Electron energy Electron energy

Q: the case of pn junction of the same material, the internal potential Vbi increases as more doping is…

A: In the case of pn junction of the same material, the internal potential Vbi increases as more doping…

Q: Question 3 a) The Fermi level of a solid-state body is the thermodynamic work required to add one…

A: (a) Fermi level: The band nearest to the Fermi level is the valence band and conduction band in…

Q: (ii) What is the origin of the positively charged holes in the valence band ? Are these positive…

A: Given :   In the above  question they are interested to know the generation of the positively…

Q: ol1.) For the circuit below, assume a forward diode drop of V, =0.7V . Determine the total output…

A: a Vin h) = 2+0.05 sin wt    If only D voltage is applied    VinDC=2 Now calculate AC resistance…

Q: For this circuit, assuming ideal diode, the maximum value in the output waveform equals ............…

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Q: (a) Figure 1 shows a circuit that consists of two silicon diodes, D₁ and D₂. Using ideal model…

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Q: 1. A semi conductor diode has (one, two,three) pn junetion. 2. A semiconductor cliode has forward…

A: “Since you have asked multiple question, we will solve the first three questions for you. If you…

Q: In the circuit given in the figure, since Vi is a square wave with a frequency of 1 kHz and an…

A: According to the question, for the given circuit as shown belowVi is a square wave with a frequency…

Q: Which statement(s) is (are) true about a P-N junction: A. P-N junction consists of n-type and…

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Q: (i) Semiconductors are useful as electronic devices because They are very abundant in nature They…

A: ANSWER (i) Because, Their conductivity can be controlled by the addition…

Q: Problem 1 D 22kQ Figure Pl In the circuit in Figure P1 determine V. and Ip. Assume the "0.7 V…

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Q: QUESTION 1 a) b) c) Define briefly the terms ionization and electron-hole pair (EHP). Draw the…

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Q: ) The figure below shows the electron and hole concentration in a silicon region. The electron and…

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Q: 5. A voltage source produces a "Triangle" wave and is connected to a series diode and resistor…

A: The given circuit isWe need to determine which graph is best represents the voltage across the…

Q: A. Why does the conductivity of a semiconductor and some insulators change with impurity content?…

A: A - The conductivity of a semiconductor and some insulators changes with impurity content due to a…

Q: Consider an idealized diode with a reverse saturation current 0.01 mA and an abrupt turn-on voltage…

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Q: When a p-and n-type semiconductor are joined at an interface their Fermi energies equilibriate. If…

A: When a p-and n-type semiconductor are joined at an interface their Fermi energies equilibriate. If…

Electrical Heating Unit

The conversion of electrical energy to heat energy is known as electric heating. The heating system that converts the electrical energy to heat energy for various application is called electrical heating unit. Electricity is employed as the firing mechanism in electric heating systems, which transforms electric current to heat. Electric heaters have heating elements in the form of electric resistors.